Product list does not contain extension_attributes stock_item

app/code/Magento/CatalogInventory/Observer/AddStockItemsObserver.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2018 Adobe
+ * All Rights Reserved.
  */
 
 namespace Magento\CatalogInventory\Observer;
@@ -15,22 +15,23 @@
 use Magento\Framework\Event\ObserverInterface;
 
 /**
- * Add Stock items to product collection.
+ * @deprecated 100.2.0 Stock Item as a part of ExtensionAttributes is deprecated
+ * @see StockItemInterface when you want to change the stock data
+ * @see StockStatusInterface when you want to read the stock data for representation layer (storefront)
+ * @see StockItemRepositoryInterface::save as extension point for customization of saving process
  */
 class AddStockItemsObserver implements ObserverInterface
 {
     /**
      * @var StockConfigurationInterface
      */
-    private $stockConfiguration;
+    private StockConfigurationInterface $stockConfiguration;
     /**
      * @var StockRegistryPreloader
      */
-    private $stockRegistryPreloader;
+    private StockRegistryPreloader $stockRegistryPreloader;
 
     /**
-     * AddStockItemsObserver constructor.
-     *
      * @param StockConfigurationInterface $stockConfiguration
      * @param StockRegistryPreloader $stockRegistryPreloader
      */

app/code/Magento/CatalogInventory/Test/Unit/Observer/AddStockItemsObserverTest.php

@@ -1,7 +1,7 @@
 <?php
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2018 Adobe
+ * All Rights Reserved.
  */
 declare(strict_types=1);
 
@@ -29,16 +29,16 @@ class AddStockItemsObserverTest extends TestCase
      *
      * @var AddStockItemsObserver
      */
-    private $subject;
+    private AddStockItemsObserver $subject;
 
     /**
      * @var StockConfigurationInterface|MockObject
      */
-    private $stockConfigurationMock;
+    private StockConfigurationInterface $stockConfigurationMock;
     /**
      * @var StockRegistryPreloader|MockObject
      */
-    private $stockRegistryPreloader;
+    private StockRegistryPreloader $stockRegistryPreloader;
 
     /**
      * @inheritdoc

app/code/Magento/CatalogInventory/etc/events.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0"?>
 <!--
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2013 Adobe
+ * All Rights Reserved.
  */
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
@@ -43,4 +43,7 @@
     <event name="sales_quote_item_collection_products_after_load">
         <observer name="add_stock_items" instance="Magento\CatalogInventory\Observer\AddStockItemsObserver"/>
     </event>
+    <event name="catalog_product_collection_load_after">
+        <observer name="add_stock_items_products" instance="Magento\CatalogInventory\Observer\AddStockItemsObserver"/>
+    </event>
 </config>