That's the problem actually. Not a second of "boredom", where there isn't something happening. Downtime is important, and I don't mean popping on the TV and vegetating until it's time to go to bed.
bring a mechanical puzzle, or a book to read, or a lock to pick, or a tiny pocketable laptop that allows you to actually be productive, and leave the brainrot device at home, or get rid of it.
5 years free of doom scrolling and never been happier or more productive in my life.