Ok, but I hope you can agree that the overwhelming majority of uses is a user-hostile dark pattern in news sites where they put crap onto pages so you click on it to go away, with the intent to generate additional page views and ad play-outs.
Of course. Likewise, I hope you can agree that the abuse of Web Push and other new browser features is a problem that can and should be solved without totally giving up on those new features and blocking or removing them entirely.
I see a lot of people advocating that the Web should be
essentially frozen at its current feature set or even regressed to something much less capable, and that makes me sad.
You asked for a legitimate use case and are now shifting the goal posts to be about “majority.”
If the web is to improve we need new features and strategies to mitigate the negative effects of the implementation of these features. Don’t throw the baby out with the bath water.
New features on "the web" are coming straight from Google to push their monopolist agenda (DoH, URL hiding just to name a few from this past week). Seeing as today's web is bordering on becoming useless (save for a couple enthusiast sites) and net-negative even, only helping autocrats, criminals, surveillance and privacy-invading monopolists rather than users and content creators I'd say we've already thrown out the baby with the bath water, and the "save the web" at all costs narrative needs to go away.