While trolling through my own old posts it would seem that I've mostly had notifications turned off since 2012 which is 14-years ago.
I'm still on that bandwagon. I use Focus Mode on my devices constantly which only lets through messages from my wife and kids, and school. Sometimes I have a child travelling with another family and then I add those family members to the Focus Mode for the duration of travel and remove them after.
Notifications of any form destroy any type of focus and I do everything I can to reduce them to zero.