diff --git a/src/doc/unstable-book/src/language-features/doc-cfg.md b/src/doc/unstable-book/src/language-features/doc-cfg.md
index e75f1aea99229..b15f5ee66aba1 100644
--- a/src/doc/unstable-book/src/language-features/doc-cfg.md
+++ b/src/doc/unstable-book/src/language-features/doc-cfg.md
@@ -7,7 +7,7 @@ The tracking issue for this feature is: [#43781]
 The `doc_cfg` feature allows an API be documented as only available in some specific platforms.
 This attribute has two effects:
 
-1. In the annotated item's documentation, there will be a message saying "This is supported on
+1. In the annotated item's documentation, there will be a message saying "Available on
     (platform) only".
 
 2. The item's doc-tests will only run on the specific platform.
diff --git a/src/librustdoc/clean/cfg.rs b/src/librustdoc/clean/cfg.rs
index b72d262417755..0d213a5a2dee9 100644
--- a/src/librustdoc/clean/cfg.rs
+++ b/src/librustdoc/clean/cfg.rs
@@ -171,11 +171,8 @@ impl Cfg {
     pub(crate) fn render_long_html(&self) -> String {
         let on = if self.should_use_with_in_description() { "with" } else { "on" };
 
-        let mut msg = format!(
-            "This is supported {} <strong>{}</strong>",
-            on,
-            Display(self, Format::LongHtml)
-        );
+        let mut msg =
+            format!("Available {on} <strong>{}</strong>", Display(self, Format::LongHtml));
         if self.should_append_only_to_description() {
             msg.push_str(" only");
         }
@@ -187,7 +184,7 @@ impl Cfg {
     pub(crate) fn render_long_plain(&self) -> String {
         let on = if self.should_use_with_in_description() { "with" } else { "on" };
 
-        let mut msg = format!("This is supported {} {}", on, Display(self, Format::LongPlain));
+        let mut msg = format!("Available {on} {}", Display(self, Format::LongPlain));
         if self.should_append_only_to_description() {
             msg.push_str(" only");
         }
diff --git a/src/librustdoc/clean/cfg/tests.rs b/src/librustdoc/clean/cfg/tests.rs
index 275d1b3ebd938..ece3fcb18b6f3 100644
--- a/src/librustdoc/clean/cfg/tests.rs
+++ b/src/librustdoc/clean/cfg/tests.rs
@@ -359,81 +359,73 @@ fn test_render_short_html() {
 #[test]
 fn test_render_long_html() {
     create_default_session_globals_then(|| {
-        assert_eq!(
-            word_cfg("unix").render_long_html(),
-            "This is supported on <strong>Unix</strong> only."
-        );
+        assert_eq!(word_cfg("unix").render_long_html(), "Available on <strong>Unix</strong> only.");
         assert_eq!(
             name_value_cfg("target_os", "macos").render_long_html(),
-            "This is supported on <strong>macOS</strong> only."
+            "Available on <strong>macOS</strong> only."
         );
         assert_eq!(
             name_value_cfg("target_os", "wasi").render_long_html(),
-            "This is supported on <strong>WASI</strong> only."
+            "Available on <strong>WASI</strong> only."
         );
         assert_eq!(
             name_value_cfg("target_pointer_width", "16").render_long_html(),
-            "This is supported on <strong>16-bit</strong> only."
+            "Available on <strong>16-bit</strong> only."
         );
         assert_eq!(
             name_value_cfg("target_endian", "little").render_long_html(),
-            "This is supported on <strong>little-endian</strong> only."
+            "Available on <strong>little-endian</strong> only."
         );
         assert_eq!(
             (!word_cfg("windows")).render_long_html(),
-            "This is supported on <strong>non-Windows</strong> only."
+            "Available on <strong>non-Windows</strong> only."
         );
         assert_eq!(
             (word_cfg("unix") & word_cfg("windows")).render_long_html(),
-            "This is supported on <strong>Unix and Windows</strong> only."
+            "Available on <strong>Unix and Windows</strong> only."
         );
         assert_eq!(
             (word_cfg("unix") | word_cfg("windows")).render_long_html(),
-            "This is supported on <strong>Unix or Windows</strong> only."
+            "Available on <strong>Unix or Windows</strong> only."
         );
         assert_eq!(
             (word_cfg("unix") & word_cfg("windows") & word_cfg("debug_assertions"))
                 .render_long_html(),
-            "This is supported on <strong>Unix and Windows and debug-assertions enabled\
-             </strong> only."
+            "Available on <strong>Unix and Windows and debug-assertions enabled</strong> only."
         );
         assert_eq!(
             (word_cfg("unix") | word_cfg("windows") | word_cfg("debug_assertions"))
                 .render_long_html(),
-            "This is supported on <strong>Unix or Windows or debug-assertions enabled\
-             </strong> only."
+            "Available on <strong>Unix or Windows or debug-assertions enabled</strong> only."
         );
         assert_eq!(
             (!(word_cfg("unix") | word_cfg("windows") | word_cfg("debug_assertions")))
                 .render_long_html(),
-            "This is supported on <strong>neither Unix nor Windows nor debug-assertions \
-             enabled</strong>."
+            "Available on <strong>neither Unix nor Windows nor debug-assertions enabled</strong>."
         );
         assert_eq!(
             ((word_cfg("unix") & name_value_cfg("target_arch", "x86_64"))
                 | (word_cfg("windows") & name_value_cfg("target_pointer_width", "64")))
             .render_long_html(),
-            "This is supported on <strong>Unix and x86-64, or Windows and 64-bit</strong> only."
+            "Available on <strong>Unix and x86-64, or Windows and 64-bit</strong> only."
         );
         assert_eq!(
             (!(word_cfg("unix") & word_cfg("windows"))).render_long_html(),
-            "This is supported on <strong>not (Unix and Windows)</strong>."
+            "Available on <strong>not (Unix and Windows)</strong>."
         );
         assert_eq!(
             ((word_cfg("debug_assertions") | word_cfg("windows")) & word_cfg("unix"))
                 .render_long_html(),
-            "This is supported on <strong>(debug-assertions enabled or Windows) and Unix\
-             </strong> only."
+            "Available on <strong>(debug-assertions enabled or Windows) and Unix</strong> only."
         );
         assert_eq!(
             name_value_cfg("target_feature", "sse2").render_long_html(),
-            "This is supported with <strong>target feature <code>sse2</code></strong> only."
+            "Available with <strong>target feature <code>sse2</code></strong> only."
         );
         assert_eq!(
             (name_value_cfg("target_arch", "x86_64") & name_value_cfg("target_feature", "sse2"))
                 .render_long_html(),
-            "This is supported on <strong>x86-64 and target feature \
-             <code>sse2</code></strong> only."
+            "Available on <strong>x86-64 and target feature <code>sse2</code></strong> only."
         );
     })
 }
diff --git a/src/test/rustdoc-gui/item-info-overflow.goml b/src/test/rustdoc-gui/item-info-overflow.goml
index 4ff719bfb7ddc..d6385e2acb8e6 100644
--- a/src/test/rustdoc-gui/item-info-overflow.goml
+++ b/src/test/rustdoc-gui/item-info-overflow.goml
@@ -8,7 +8,7 @@ assert-property: (".item-info", {"scrollWidth": "890"})
 // Just to be sure we're comparing the correct "item-info":
 assert-text: (
     ".item-info",
-    "This is supported on Android or Linux or Emscripten or DragonFly BSD",
+    "Available on Android or Linux or Emscripten or DragonFly BSD",
     STARTS_WITH,
 )
 
@@ -23,6 +23,6 @@ assert-property: ("#impl-SimpleTrait .item-info", {"scrollWidth": "866"})
 // Just to be sure we're comparing the correct "item-info":
 assert-text: (
     "#impl-SimpleTrait .item-info",
-    "This is supported on Android or Linux or Emscripten or DragonFly BSD",
+    "Available on Android or Linux or Emscripten or DragonFly BSD",
     STARTS_WITH,
 )
diff --git a/src/test/rustdoc-gui/item-info-width.goml b/src/test/rustdoc-gui/item-info-width.goml
index 7a32d9029103a..8b6d355a8f1a7 100644
--- a/src/test/rustdoc-gui/item-info-width.goml
+++ b/src/test/rustdoc-gui/item-info-width.goml
@@ -4,5 +4,5 @@ goto: file://|DOC_PATH|/lib2/struct.Foo.html
 size: (1100, 800)
 // We check that ".item-info" is bigger than its content.
 assert-css: (".item-info", {"width": "790px"})
-assert-css: (".item-info .stab", {"width": "340px"})
+assert-css: (".item-info .stab", {"width": "289px"})
 assert-position: (".item-info .stab", {"x": 295})
diff --git a/src/test/rustdoc/doc-cfg.rs b/src/test/rustdoc/doc-cfg.rs
index 9465c8a35c886..4cddb0b76d410 100644
--- a/src/test/rustdoc/doc-cfg.rs
+++ b/src/test/rustdoc/doc-cfg.rs
@@ -4,21 +4,21 @@
 // @has doc_cfg/struct.Portable.html
 // @!has - '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' ''
 // @has - '//*[@id="method.unix_and_arm_only_function"]' 'fn unix_and_arm_only_function()'
-// @has - '//*[@class="stab portability"]' 'This is supported on Unix and ARM only.'
+// @has - '//*[@class="stab portability"]' 'Available on Unix and ARM only.'
 // @has - '//*[@id="method.wasi_and_wasm32_only_function"]' 'fn wasi_and_wasm32_only_function()'
-// @has - '//*[@class="stab portability"]' 'This is supported on WASI and WebAssembly only.'
+// @has - '//*[@class="stab portability"]' 'Available on WASI and WebAssembly only.'
 pub struct Portable;
 
 // @has doc_cfg/unix_only/index.html \
 //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-//  'This is supported on Unix only.'
+//  'Available on Unix only.'
 // @matches - '//*[@class="item-left module-item"]//*[@class="stab portability"]' '\AARM\Z'
 // @count - '//*[@class="stab portability"]' 2
 #[doc(cfg(unix))]
 pub mod unix_only {
     // @has doc_cfg/unix_only/fn.unix_only_function.html \
     //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-    //  'This is supported on Unix only.'
+    //  'Available on Unix only.'
     // @count - '//*[@class="stab portability"]' 1
     pub fn unix_only_function() {
         content::should::be::irrelevant();
@@ -26,7 +26,7 @@ pub mod unix_only {
 
     // @has doc_cfg/unix_only/trait.ArmOnly.html \
     //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-    //  'This is supported on Unix and ARM only.'
+    //  'Available on Unix and ARM only.'
     // @count - '//*[@class="stab portability"]' 1
     #[doc(cfg(target_arch = "arm"))]
     pub trait ArmOnly {
@@ -41,14 +41,14 @@ pub mod unix_only {
 
 // @has doc_cfg/wasi_only/index.html \
 //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-//  'This is supported on WASI only.'
+//  'Available on WASI only.'
 // @matches - '//*[@class="item-left module-item"]//*[@class="stab portability"]' '\AWebAssembly\Z'
 // @count - '//*[@class="stab portability"]' 2
 #[doc(cfg(target_os = "wasi"))]
 pub mod wasi_only {
     // @has doc_cfg/wasi_only/fn.wasi_only_function.html \
     //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-    //  'This is supported on WASI only.'
+    //  'Available on WASI only.'
     // @count - '//*[@class="stab portability"]' 1
     pub fn wasi_only_function() {
         content::should::be::irrelevant();
@@ -56,7 +56,7 @@ pub mod wasi_only {
 
     // @has doc_cfg/wasi_only/trait.Wasm32Only.html \
     //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-    //  'This is supported on WASI and WebAssembly only.'
+    //  'Available on WASI and WebAssembly only.'
     // @count - '//*[@class="stab portability"]' 1
     #[doc(cfg(target_arch = "wasm32"))]
     pub trait Wasm32Only {
@@ -78,7 +78,7 @@ pub mod wasi_only {
 
 // @has doc_cfg/fn.uses_target_feature.html
 // @has - '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-//        'This is supported with target feature avx only.'
+//        'Available with target feature avx only.'
 #[target_feature(enable = "avx")]
 pub unsafe fn uses_target_feature() {
     content::should::be::irrelevant();
@@ -86,7 +86,7 @@ pub unsafe fn uses_target_feature() {
 
 // @has doc_cfg/fn.uses_cfg_target_feature.html
 // @has - '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-//        'This is supported with target feature avx only.'
+//        'Available with target feature avx only.'
 #[doc(cfg(target_feature = "avx"))]
 pub fn uses_cfg_target_feature() {
     uses_target_feature();
@@ -95,7 +95,7 @@ pub fn uses_cfg_target_feature() {
 // multiple attributes should be allowed
 // @has doc_cfg/fn.multiple_attrs.html \
 //  '//*[@id="main-content"]/*[@class="item-info"]/*[@class="stab portability"]' \
-//  'This is supported on x and y and z only.'
+//  'Available on x and y and z only.'
 #[doc(cfg(x))]
 #[doc(cfg(y), cfg(z))]
 pub fn multiple_attrs() {}
diff --git a/src/test/rustdoc/duplicate-cfg.rs b/src/test/rustdoc/duplicate-cfg.rs
index 886ec6750304a..18f3900b263b0 100644
--- a/src/test/rustdoc/duplicate-cfg.rs
+++ b/src/test/rustdoc/duplicate-cfg.rs
@@ -3,7 +3,7 @@
 
 // @has 'foo/index.html'
 // @matches '-' '//*[@class="item-left module-item"]//*[@class="stab portability"]' '^sync$'
-// @has '-' '//*[@class="item-left module-item"]//*[@class="stab portability"]/@title' 'This is supported on crate feature `sync` only'
+// @has '-' '//*[@class="item-left module-item"]//*[@class="stab portability"]/@title' 'Available on crate feature `sync` only'
 
 // @has 'foo/struct.Foo.html'
 // @has '-' '//*[@class="stab portability"]' 'sync'
@@ -13,41 +13,41 @@
 pub struct Foo;
 
 // @has 'foo/bar/index.html'
-// @has '-' '//*[@class="stab portability"]' 'This is supported on crate feature sync only.'
+// @has '-' '//*[@class="stab portability"]' 'Available on crate feature sync only.'
 #[doc(cfg(feature = "sync"))]
 pub mod bar {
     // @has 'foo/bar/struct.Bar.html'
-    // @has '-' '//*[@class="stab portability"]' 'This is supported on crate feature sync only.'
+    // @has '-' '//*[@class="stab portability"]' 'Available on crate feature sync only.'
     #[doc(cfg(feature = "sync"))]
     pub struct Bar;
 }
 
 // @has 'foo/baz/index.html'
-// @has '-' '//*[@class="stab portability"]' 'This is supported on crate features sync and send only.'
+// @has '-' '//*[@class="stab portability"]' 'Available on crate features sync and send only.'
 #[doc(cfg(all(feature = "sync", feature = "send")))]
 pub mod baz {
     // @has 'foo/baz/struct.Baz.html'
-    // @has '-' '//*[@class="stab portability"]' 'This is supported on crate features sync and send only.'
+    // @has '-' '//*[@class="stab portability"]' 'Available on crate features sync and send only.'
     #[doc(cfg(feature = "sync"))]
     pub struct Baz;
 }
 
 // @has 'foo/qux/index.html'
-// @has '-' '//*[@class="stab portability"]' 'This is supported on crate feature sync only.'
+// @has '-' '//*[@class="stab portability"]' 'Available on crate feature sync only.'
 #[doc(cfg(feature = "sync"))]
 pub mod qux {
     // @has 'foo/qux/struct.Qux.html'
-    // @has '-' '//*[@class="stab portability"]' 'This is supported on crate features sync and send only.'
+    // @has '-' '//*[@class="stab portability"]' 'Available on crate features sync and send only.'
     #[doc(cfg(all(feature = "sync", feature = "send")))]
     pub struct Qux;
 }
 
 // @has 'foo/quux/index.html'
-// @has '-' '//*[@class="stab portability"]' 'This is supported on crate feature sync and crate feature send and foo only.'
+// @has '-' '//*[@class="stab portability"]' 'Available on crate feature sync and crate feature send and foo only.'
 #[doc(cfg(all(feature = "sync", feature = "send", foo)))]
 pub mod quux {
     // @has 'foo/quux/struct.Quux.html'
-    // @has '-' '//*[@class="stab portability"]' 'This is supported on crate feature sync and crate feature send and foo and bar only.'
+    // @has '-' '//*[@class="stab portability"]' 'Available on crate feature sync and crate feature send and foo and bar only.'
     #[doc(cfg(all(feature = "send", feature = "sync", bar)))]
     pub struct Quux;
 }