If my phone interrupts me, it should either mean someone genuinely needs my attention right now or it should not be disrupting me at all. That's my notification set up. Apps allowed to receive push notifications Phone, Messages, Whatsapp, Apple Health, [brand] bank. That concludes the list. There is no reason any other app needs to be able to instantly ping me. Most apps are not notifying you because something matter…
At this point, I'm pretty much in some form of DND at all times. I have a very small list of people that I allow the device to notify me at any time for calls/messages. Everyone else gets silenced and I'll get back to them when I choose. All other apps have notifications disabled and I'm constantly nagged about it when using those apps