Sadly, probably more people than care about the other stuff. At least if my News feed says anything about society. I have to actively block/dislike anything celebrity related or it clogs my feed.

As for notifications, with easy access to news through HN, Apple News, online newspapers, and social media feeds, I don't feel like I need notifications for much.

Right now, my phone is limited to texts, calls, meeting reminders, and the security system at my house. None from social media, none from news, email is off, etc.