I think there should be an option for Picture in Picture for always on top. At the moment it is always on top and at some points I need the workspace on desktop. It would be great if there is an option to enable/disable always on top.
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This is something I am also looking for. When I have multiple PiP windows open, it quite often happens that I'll open another application or a minimized window, and it's hidden and requires moving or closing the video(s) to reach them.
I tend to use the PiP window more for providing a clean and stripped down window for a video to play in, rarely am I using it on top of another application where I need the functionality of an "always on top" window.