We did something similar with our now 12yo. She self-regulates and tries to stay off the worst doom scrolling garbage sites, and tries to explore different sites and such like Pinterest cards and so on. She knows intellectually that the apps and services are designed to suck away attention. This kinda broke my heart but the other day she made a "bored jar" probably based on a Pinterest card which is a jar filled with little scraps of paper with ideas for what to do when you're bored. It felt like I was watching a drowning person trying their best to stay afloat if that makes sense.

Why is that a bad thing? Choosing to be bored instead of mindlessly scrolling is great. Boredom was an important part of growing up for me.