I recently got into Bazzite and I'm currently working on understanding and migrating to this OS, one of the things that got my attention is the PiP mode, which by default doesn't stay on top of other windows, and that made me think about the whole purpose of this functionality to begin with, anyway this led me to think about my best idea ever which is to add "some option" in which the user can choose what is his preferred PiP window behavior and set it as default, so he don't go through all the process again and again.