Preach. Nothing on my phone is allowed to show me notifications except emails to my main address (which are likely to actually be important and not spam), calls, texts, and a select few Discord channels.
Everyone and everything else can fuck off until I get around to them, which includes my work email inbox.
I am continually disgusted by then number of apps that are not communications related insist on trying to push notifications into your stack all the time. Especially mobile games. That shit can fuck right off.
I'm a caregiver for my mom, so I work in the home. I turned off all notifications. Texts, calls, all of it. If I leave the house, I'll unmute so I know if she calls me, because she may need actual help with something, but even then, it's literally just her on Whatsapp that goes through, nothing else.
I've never felt like I had a healthier relationship with my phone. I tend to scroll a little too much on Lemmy, watch too many YouTube shorts in the bathroom or while I'm cooking, but other than that, I feel like a normal human again for the first time since ~2010
I don't have Google Play services on my phone and I don't get notifications from any app that doesn't support unified push. So I get only calls, texts and signal.