The whole problem with a sea of notifications is that it’s hard to identify what’s important and what’s not. Your suggested solution does nothing to solve that problem other than to relocate when the problem arises.
a) If there's far too many notifications, the bulk of them is not important. If only because you'd easily overlook them even if they were 'important'.
b) Is it difficult to decide between those few notifications that matter (like, those you act upon), and all the rest? (like, those you ignore).
For several years people were messaging me and I was completely oblivious.