FPS’s seemed boring, online games couldn’t keep my attention long enough to get through a match, and eventually I’d just leave a game on the pause menu while I messed around mindlessly on my phone.
My partner does this.
One, you might have ADHD. I can't say, but you could look into it.
Secondly, you need to have some time to let your brain rest. When you bounce between tasks like that, you're never actually not doing something. People think of doomscrolling as taking a break, but really you're replacing your intended task with another task and there isn't a time where you do no task.