On your phone in particular. I have all turned off except for signal messages from a few people.
Side question: Have you or anyone you’ve known “rang the bell” on content on youtube, twitch, etc? For how many channels? What (kind of dystopian nightmare) was that like?
Total: about 5 to 20 on any given day
Haven’t ever felt the need to get YT or other subscriber notifications and one of the first things I do when setting up a new browser is disabling all requests for notification permissions.