what works for me (on windows) is installing the youtube web app (just for notifications). it integrates into the windows notifications better than just enabling them via browser. windows will pop up with live notifications minutes before they get pushed to my phone. not sure if there's a similar integration for linux though.I literally have push YouTube notifications enabled and it isn't properly fucking notifying me. Like the videos (neither of them) literally are not in my notifications tab despite notifications being explicitly enabled. I fucking hate YouTube