diff --git a/qt/aqt/sync.py b/qt/aqt/sync.py
index 75bdeca89..0ce02866a 100644
--- a/qt/aqt/sync.py
+++ b/qt/aqt/sync.py
@@ -121,6 +121,29 @@ def sync_collection(mw: aqt.main.AnkiQt, on_done: Callable[[], None]) -> None:
             showText(out.server_message, parent=mw)
         if out.required == out.NO_CHANGES:
             tooltip(parent=mw, msg=tr.sync_collection_complete())
+
+            # Monitor window focus and close tooltip if window loses focus
+            def check_focus() -> None:
+                from aqt.utils import closeTooltip
+
+                # Close tooltip if window loses focus, becomes invisible, or is minimized
+                if (
+                    not mw.isActiveWindow()
+                    or not mw.isVisible()
+                    or (mw.windowState() & Qt.WindowState.WindowMinimized)
+                ):
+                    closeTooltip()
+                    focus_timer.stop()
+
+            focus_timer = QTimer(mw)
+            qconnect(focus_timer.timeout, check_focus)
+            focus_timer.start(100)  # Check every 100ms
+
+            # Stop monitoring after tooltip's natural expiry time
+            def stop_monitoring() -> None:
+                focus_timer.stop()
+
+            QTimer.singleShot(3000, stop_monitoring)
             # all done; track media progress
             mw.media_syncer.start_monitoring()
             return on_done()