diff --git a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
index a7a25f4..758bffb 100644
--- a/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
+++ b/src/com/android/launcher3/accessibility/LauncherAccessibilityDelegate.java
@@ -7,6 +7,7 @@
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.anim.AnimatorListeners.forSuccessCallback;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.IGNORE;
+import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_NOT_PINNABLE;
 
 import android.appwidget.AppWidgetProviderInfo;
 import android.graphics.Point;
@@ -124,12 +125,19 @@
             }
         }
 
-        if ((item instanceof WorkspaceItemFactory) || (item instanceof WorkspaceItemInfo)
-                || (item instanceof PendingAddItemInfo)) {
+        if (supportAddToWorkSpace(item)) {
             out.add(mActions.get(ADD_TO_WORKSPACE));
         }
     }
 
+    private boolean supportAddToWorkSpace(ItemInfo item) {
+        return (item instanceof WorkspaceItemFactory)
+                || ((item instanceof WorkspaceItemInfo)
+                    && (((WorkspaceItemInfo) item).runtimeStatusFlags & FLAG_NOT_PINNABLE) == 0)
+                || ((item instanceof PendingAddItemInfo)
+                    && (((PendingAddItemInfo) item).runtimeStatusFlags & FLAG_NOT_PINNABLE) == 0);
+    }
+
     /**
      * Returns all the accessibility actions that can be handled by the host.
      */
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index f5f6769..0f60f7f 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -277,7 +277,7 @@
                     + " is enabled or in prefix state");
 
     public static final BooleanFlag ENABLE_SEARCH_UNINSTALLED_APPS = getReleaseFlag(270395269,
-            "ENABLE_SEARCH_UNINSTALLED_APPS", DISABLED, "Search uninstalled app results.");
+            "ENABLE_SEARCH_UNINSTALLED_APPS", ENABLED, "Search uninstalled app results.");
 
     // TODO(Block 20): Clean up flags
     public static final BooleanFlag ENABLE_SCRIM_FOR_APP_LAUNCH = getDebugFlag(270393276,
diff --git a/src/com/android/launcher3/model/data/ItemInfoWithIcon.java b/src/com/android/launcher3/model/data/ItemInfoWithIcon.java
index e5fb015..b4a935a 100644
--- a/src/com/android/launcher3/model/data/ItemInfoWithIcon.java
+++ b/src/com/android/launcher3/model/data/ItemInfoWithIcon.java
@@ -119,6 +119,11 @@
             | FLAG_DISABLED_VERSION_LOWER;
 
     /**
+     * Flag indicating this item can't be pinned to home screen.
+     */
+    public static final int FLAG_NOT_PINNABLE = 1 << 13;
+
+    /**
      * Status associated with the system state of the underlying item. This is calculated every
      * time a new info is created and not persisted on the disk.
      */
diff --git a/src/com/android/launcher3/util/OnboardingPrefs.java b/src/com/android/launcher3/util/OnboardingPrefs.java
index 6573691..348c8d8 100644
--- a/src/com/android/launcher3/util/OnboardingPrefs.java
+++ b/src/com/android/launcher3/util/OnboardingPrefs.java
@@ -40,17 +40,14 @@
     public static final String HOTSEAT_LONGPRESS_TIP_SEEN = "launcher.hotseat_longpress_tip_seen";
     public static final String SEARCH_KEYBOARD_EDU_SEEN = "launcher.search_edu_seen";
     public static final String SEARCH_SNACKBAR_COUNT = "launcher.keyboard_snackbar_count";
-    public static final String SEARCH_ONBOARDING_COUNT = "launcher.search_onboarding_count";
     public static final String ALL_APPS_VISITED_COUNT = "launcher.all_apps_visited_count";
-    public static final String QSB_SEARCH_ONBOARDING_CARD_DISMISSED = "launcher.qsb_edu_dismiss";
     public static final String TASKBAR_EDU_TOOLTIP_STEP = "launcher.taskbar_edu_tooltip_step";
     // When adding a new key, add it here as well, to be able to reset it from Developer Options.
     public static final Map<String, String[]> ALL_PREF_KEYS = Map.of(
             "All Apps Bounce", new String[] { HOME_BOUNCE_SEEN, HOME_BOUNCE_COUNT },
             "Hybrid Hotseat Education", new String[] { HOTSEAT_DISCOVERY_TIP_COUNT,
                     HOTSEAT_LONGPRESS_TIP_SEEN },
-            "Search Education", new String[] { SEARCH_KEYBOARD_EDU_SEEN, SEARCH_SNACKBAR_COUNT,
-                    SEARCH_ONBOARDING_COUNT, QSB_SEARCH_ONBOARDING_CARD_DISMISSED},
+            "Search Education", new String[] { SEARCH_KEYBOARD_EDU_SEEN, SEARCH_SNACKBAR_COUNT},
             "Taskbar Education", new String[] { TASKBAR_EDU_TOOLTIP_STEP },
             "All Apps Visited Count", new String[] {ALL_APPS_VISITED_COUNT}
     );
@@ -62,7 +59,6 @@
             HOME_BOUNCE_SEEN,
             HOTSEAT_LONGPRESS_TIP_SEEN,
             SEARCH_KEYBOARD_EDU_SEEN,
-            QSB_SEARCH_ONBOARDING_CARD_DISMISSED
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface EventBoolKey {}
@@ -74,7 +70,6 @@
             HOME_BOUNCE_COUNT,
             HOTSEAT_DISCOVERY_TIP_COUNT,
             SEARCH_SNACKBAR_COUNT,
-            SEARCH_ONBOARDING_COUNT,
             ALL_APPS_VISITED_COUNT,
             TASKBAR_EDU_TOOLTIP_STEP,
     })
@@ -88,8 +83,6 @@
         maxCounts.put(HOME_BOUNCE_COUNT, 3);
         maxCounts.put(HOTSEAT_DISCOVERY_TIP_COUNT, 5);
         maxCounts.put(SEARCH_SNACKBAR_COUNT, 3);
-        // This is the sum of all onboarding cards. Currently there is only 1 card shown 3 times.
-        maxCounts.put(SEARCH_ONBOARDING_COUNT, 3);
         maxCounts.put(ALL_APPS_VISITED_COUNT, 20);
         maxCounts.put(TASKBAR_EDU_TOOLTIP_STEP, 2);
         MAX_COUNTS = Collections.unmodifiableMap(maxCounts);