The link below can be added as a bookmark to your favourite browser. Whenever you are browsing Twitch, YouTube, Netflix, Disney+, Amazon Prime and possibly more (not tested), you can click the bookmark and pop-out the video into it's own, resizable window.
I always did this manually (optionally removing layers above the video to directly right click the video element), but it has become quite cumbersome (especially with twitch). Another thought I had was to write an extension which shows a button, but this bookmark is way simpler.
It works like this:
- Find video elements
- Filter them by which element is currently playing and has no errors