I had a request for an ear doctor roleplay, so here is my attempt. I have not tried a doctor role play before so I hope it is not too bad. Sorry I don't have anyplace in my house that looks like a doctor's office so you'll have to imagine that part. :) PS I have no medical education or training, this is all made up for the purpose of relaxation.
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