diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -30,7 +30,10 @@
   getAllThreadPermissions,
   makePermissionsBlob,
 } from '../permissions/thread-permissions.js';
-import type { ChatThreadItem } from '../selectors/chat-selectors.js';
+import type {
+  ChatThreadItem,
+  SidebarItem,
+} from '../selectors/chat-selectors.js';
 import {
   threadInfoSelector,
   pendingToRealizedThreadIDsSelector,
@@ -1416,6 +1419,48 @@
   return null;
 }
 
+function getSearchResultsForEmptySearchText(
+  chatListData: $ReadOnlyArray<ChatThreadItem>,
+  threadFilter: ThreadInfo => boolean,
+): $ReadOnlyArray<ChatThreadItem> {
+  const threadHomeSubscriptions = Object.fromEntries(
+    chatListData.map(chatThreadItem => [
+      chatThreadItem.threadInfo.id,
+      threadIsInHome(chatThreadItem.threadInfo),
+    ]),
+  );
+
+  return chatListData
+    .filter((item: ChatThreadItem) => {
+      const threadInfo = item.threadInfo;
+      const { parentThreadID } = threadInfo;
+      const isThreadInHome = threadIsInHome(threadInfo);
+
+      if (threadIsSidebar(threadInfo) && parentThreadID) {
+        const isParentInHome = threadHomeSubscriptions[parentThreadID];
+        if (isParentInHome === isThreadInHome) {
+          return false;
+        }
+      }
+      return threadInChatList(threadInfo) && threadFilter(threadInfo);
+    })
+    .map((item: ChatThreadItem) => {
+      if (threadIsSidebar(item.threadInfo)) {
+        return item;
+      }
+      const sidebarsOnlyInSameTab = item.sidebars.filter(
+        (sidebar: SidebarItem) =>
+          sidebar.type !== 'sidebar' ||
+          threadIsInHome(sidebar.threadInfo) ===
+            threadIsInHome(item.threadInfo),
+      );
+      return {
+        ...item,
+        sidebars: sidebarsOnlyInSameTab,
+      };
+    });
+}
+
 function getThreadListSearchResults(
   chatListData: $ReadOnlyArray<ChatThreadItem>,
   searchText: string,
@@ -1425,10 +1470,7 @@
   loggedInUserInfo: ?LoggedInUserInfo,
 ): $ReadOnlyArray<ChatThreadItem> {
   if (!searchText) {
-    return chatListData.filter(
-      item =>
-        threadIsTopLevel(item.threadInfo) && threadFilter(item.threadInfo),
-    );
+    return getSearchResultsForEmptySearchText(chatListData, threadFilter);
   }
 
   const privateThreads = [];