Comment by nielsbot
The Vinegar extension on macOS/iOS lets you use the system video player on YouTube. (It has a few glitches but works fine and let's you use PiP and play videos with the screen locked.)
The Vinegar extension on macOS/iOS lets you use the system video player on YouTube. (It has a few glitches but works fine and let's you use PiP and play videos with the screen locked.)