I would like to add to this thread. Picture in Picture used to have a separate window and this allowed me to stream it to discord and OBS. Picture in Picture was a huge reason for me to use opera, and without being able to stream it, it forces me to use chrome. It is very unfortunate and this should be seen as a bug. I don't see any reason as to why it wouldn't be a separate window especially when it was before. This began a couple months ago for me.

please fix bro