Plex is an open source media player; https://github.com/plexinc - not sure how you'd go about using it for testing.
I've just tried the same instructions with YouTube, and the Picture in Picture option shows a few seconds after the media starts playing. So, likely this is something weird that Plex specifically is doing, even though the new-tab creation gets it to show up.
In light of that, this probably could be closed?
Steps to reproduce:
close orion
open orion with no tabs
navigate to plex and play a video
look at the view menu, Picture in Picture is grayed out / disabled
make a new tab (empty)
go back to the plex video tab
look at the view menu, Picture in Picture is now enabledExpected behavior:
Picture in Picture should be enabled as soon as there is a videoOrion, OS version; hardware type:
Version 0.99.123-beta (WebKit 615.1.16.1), macOS ventura, m1Image/Video:
Steps to reproduce:
press ^ + shift + Pyou will get page setup dialogue for printing
Expected behavior:
turn on Picture in Picture modeOrion, OS version; hardware type:
Version 0.99.123-beta (WebKit 615.1.16.1), macOS ventura, m1Image/Video:
Came here to ask for this, and learn't it basically already exists. Now I can uninstall Firefox completely.