Hi friends! Just a little catch up as I am moving this Saturday, and my physical reality is 85% in boxes and bags. Thanks so much for you patience. I can't wait to be in my new space in just a few days :)
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app