We'll just use a 3-hole punch on individual sheets of paper. That's it. No talking. NOTE: Yes, I know the last ten or so pages were flipped upside down. That's because I'd already used them once in a different (but similar) video. Recycle, reduce, reuse, and all that.
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