Regulating specific interfaces that have been shown to be addictive is the same as regulating specific classes of drugs. And it’s not like we have a plethora of variants of interfaces that have been equally discovered to be toxic. They are finite and enumerable as they come up.
If they have a set of characteristics that line up with social negatives, they should be disallowed or not permitted for persons under N years old (like for gambling or smoking). This doesnt solve the problem for adults of course, but its a good compromise.
I would very readily be in favor of outright banning infinite scrolling video feeds, even if its just for under 18s