Index: src/js/_enqueues/admin/common.js
===================================================================
--- src/js/_enqueues/admin/common.js	(revision 57018)
+++ src/js/_enqueues/admin/common.js	(working copy)
@@ -2129,8 +2129,8 @@
 /**
  * Freeze animated plugin icons when reduced motion is enabled.
  *
- * When the user has enabled the 'prefers-reduced-motion' setting, this module 
- * stops animations for all GIFs on the page with the class 'plugin-icon' or 
+ * When the user has enabled the 'prefers-reduced-motion' setting, this module
+ * stops animations for all GIFs on the page with the class 'plugin-icon' or
  * plugin icon images in the update plugins table.
  *
  * @since 6.4.0
@@ -2156,7 +2156,7 @@
 			var width = img.width;
 			var height = img.height;
 			var canvas = document.createElement( 'canvas' );
-			
+
 			// Set canvas dimensions.
 			canvas.width = width;
 			canvas.height = height;
@@ -2219,23 +2219,27 @@
 
 	// Listen for jQuery AJAX events.
 	( function( $ ) {
-		$( document ).ajaxComplete( function( event, xhr, settings ) {
-			// Check if this is the 'search-install-plugins' request.
-			if ( settings.data && settings.data.includes( 'action=search-install-plugins' ) ) {
-				// Recheck if the user prefers reduced motion.
-				if ( window.matchMedia ) {
-					var mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
-					if ( mediaQuery.matches ) {
-						pub.freezeAll();
+		if ( window.pagenow === 'plugin-install' ) {
+			// Only listen for ajaxComplete if this is the plugin-install.php page.
+			$( document ).ajaxComplete( function( event, xhr, settings ) {
+
+				// Check if this is the 'search-install-plugins' request.
+				if ( settings.data && typeof settings.data === 'string' && settings.data.includes( 'action=search-install-plugins' ) ) {
+					// Recheck if the user prefers reduced motion.
+					if ( window.matchMedia ) {
+						var mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
+						if ( mediaQuery.matches ) {
+							pub.freezeAll();
+						}
+					} else {
+						// Fallback for browsers that don't support matchMedia.
+						if ( true === priv.pauseAll ) {
+							pub.freezeAll();
+						}
 					}
-				} else {
-					// Fallback for browsers that don't support matchMedia.
-					if ( true === priv.pauseAll ) {
-						pub.freezeAll();
-					}
 				}
-			}
-		} );
+			} );
+		}
 	} )( jQuery );
 
 	// Expose public methods.