Here's a quick trigger video featuring bubble wrap popping and finger sounds on Post-It note adhesive. The bubble wrap is louder, so be aware if you're watching. Post-It notes start at 6:46. Noise wasn't optimum on this, so I plan to do a better Post-It recording in the future.
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