I don't know of a better word for it than disattention. Perhaps downtime? But it's not so structured. It's just those moments where you'd previously let your mind wander. Gone forever.
And I agree, not letting your mind do this from time to time results in higher stress and less ability to focus.
I read "Non-Things: Upheaval in the Lifeworld" recently and since reading that I make an effort to not pick up my phone as much. I'd recommend reading the book, if you're looking for something to do instead of doomscrolling.
That's the same with smartphones and those scrolling apps, they make it fun to do nothing and be bored.
Anyway, the article I'm thinking of was about a guy who had advice along the lines of "keeping up your hygiene" or "maintaining your cleanliness habits" and his anecdote was about being stuck for a while in making progress on a problem, but he would have a habit of taking a daily shower. There was a detail he shared about getting an insight and then being able to write some ideas on the window with the condensation.
I wonder if I can find it again.
> I'm fixing a hole where the rain gets in
> And stops my mind from wandering
> Where it will go
I mean, just shut your phone off. You're likely just missing text messages anyway.