I haven't done a library roleplay in a while because I've not been able to find a table that works to my satisfaction. This setup is awful, but it's all I have. It resembles an illustration from a Dr. Seuss book. You'd laugh if you saw it. I wanted to do another library roleplay today, so here it is.
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