The obvious answer to this mess is probably a simple engagement tax.

Companies like Facebook and Tiktok are incentivized to behaviorally modify their users in a way that's harmful to society: they make more money the longer everyone in society has their face glued to a phone. They'd be thrilled and printing money as society collapsed into every person staring into a slab of glass 20 plus hours per day.

Tax that time directly so it's no longer profitable to glue everyone to their phone.