On your way to work, you realize you have forgotten your phone. When you return home to get it, there is some strange girl coming in through the window. (This is my first attempt at improv, so hopefully it'll still sound fine to every kitty
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