I have very specific request to add a per-app setting to Windows Manger's Exclusion Rules to make windows of some app always run minimized, preventing focus stealing by running on lower layers (if there is such concept in Tangrid architecture), or staying hidden unless explicitly opened via the App Switcher.
This would be especially useful for apps that only run passive or automated tasks in the background (e.g. tsh auth session renewal in the browser). They still pop up as a floating window and steal focus, which is a minor but recurring distraction.