Ok, then the same result with Kodular ... really strange ...
But actually it should then happen with all apps and not just with AI2 apps, because most apps do not remove the apps from the recent apps.
Btw, to be clearer for everyone, "Android 11 R" is a pleonasm like a "dead corpse".
Makes sense but I do not know how the apps I installed are made but I could try to make a minimum app with Android Studio or Xamarin or C++ Builder and see what happens.
You could also try the MoveTaskToBack method from the notification extension
Taifun
Good to know, I will try and update you. I like your extensions, they are simple to use, well documented and work well.