I feel this. One thing that helped me is separating “notifications” into 2 buckets: (1) interrupts (things that must break my focus) vs (2) queues (things I can review on my own schedule). Most apps only offer more interrupts. What I actually want is a daily/weekly review queue that surfaces the few items that map to active priorities.

Curious: what are the top 2–3 categories you never want to miss (people, deadlines, bills, health, etc.)? And where do they originate (email, calendar, Slack, SMS)?