The just-released Windows 11 preview build 22635.4950 introduces a new drag tray feature to simplify file sharing and two new views for the “All” page in the Start menu. “Sharing files in ...

It doesn't need to be the main thread but you have to create the tray icon on the same thread as the event loop. On macOS, an event loop must be running on the main thread so you also need to create ...