No, the idea is to turn them all off and make phone checking a conscious act instead of notification induced.

Whoever needs you now can call on voice.

What makes that difficult is when you have a legitimate case for time-sensitive notifications and the app owner mixes in marketing spam with no way to disable them. It's either accept marketing spam OR lose a valuable notification. Looking at you, LG.

I leave notifications on because o only use them for things I need to be notified about. Largely, medical stuff.