I have been using scheduled do not disturb for over a decade, it makes SUCH a difference. I always have it on 10 PM - 7 AM, and I have started enabling it for an hour if work picks up or if I’m at the gym so I can focus.

My work phone is on DND more than not, I’m available 7:30 AM - 5 PM on weekdays and it is in DND otherwise, super nice.