Let me start by saying that I really like this tool, I use it when I’m working in the browser and need entertaining content in the background.
Add the ability, where there is a "Picture-in-Picture" icon, to add a URL, as in a playlist during playback. Something like a media player in the browser. So that it reproduces the entire list automatically from beginning to end.
Make it possible to use "Picture-in-Picture" as a widget for streaming, where it could be used in obs.
I'd really like to see these improvements going forward. Previously it was not possible to adjust the volume, but you added, I think you will be able to implement this over time. It would be very helpful to avoid constantly minimize a window Picture-in-Picture at work.