let them all in or only allow for some specific apps (if so which ones)?
I usually deep sleep all apps that I don’t need to run constantly, and their notifications get disabled along with them.
So really I end up with only the core apps to receive notifications from. Usually apps related to communications.
I have all notifications turned off except the following:
Texts, calls, and calendar events are the only things that can make sound or vibrate.
Discord, Snapchat, and OneDrive* pop up but they’re silent. (*I have like 100k pictures going back 20+ years and like seeing the On This Day galleries)
I know I want some of them and I don’t have infinite apps, so whichever one’s irritate me after a few notifications I long press and disable that notification.
After a few weeks or so you just get the notification you care about
I also have all notifications disabled, except the ones I really need (texts, calls, calendar, email and others like this). I don’t like that every time I look at my phone to have tens or hundreds of notifications that I am not interested in, I want to have only what I need to see.
I remove permissions for notifications from all apps that I am able to except for sms/text & phone calls.