Not sure why you are down voted but this is really a really really big issue.
This is why "large scale action" e.g. from school or better regulators are needed and why parents only can act very limited.
Don't force social isolation on your children just because idk. "this game is bad". Even if they social circle is "good" and doesn't start excluding or harassing them because of this (totally can happen, you can't really choose with whom you are in a class) it still is leads to a subtle isolation which might by itself not cause any mental issues, but can amplify existing issues, prevent mental scare from being healed etc. And such issues don't always come from "big bad thing" sometimes small bad things wrongly processed as a child can be enough to cause life long mental issues if the child has never the chance to reprocess/recondition/overcome them.
EDIT: Just to be clear doesn't mean children should have unchecked social media/game/etc. access.
It can in many circumstances. I live rural and we don't have a land line. It's hard to get the kids over to their friends as much as they want. My solution is to talk to the other parents. We all agreed to no tik too. I turn our wifi off after bed time. We have a phone contract with our 14 year old that stipulates the usual be nice and don't live on your phone rules.
They swim, ski, kayak and play school volleyball and badminton so there's lots of opportunities for that sort of interacting but I think it would be pretty harsh to cut them off of their phones. If I could get 3/4 of their friends parents to agree I would for sure until they are 16.
social isolation isn't a yes/no question it's a gradient
and in many situation it is pretty much guaranteed to at least cause slight degree of social isolation, in some (like very rual) it might cause a large degree of social isolation
similar having a phone isn't a yes/no question, things like parent control exist, even through they often slightly suck
This is why "large scale action" e.g. from school or better regulators are needed and why parents only can act very limited.
Don't force social isolation on your children just because idk. "this game is bad". Even if they social circle is "good" and doesn't start excluding or harassing them because of this (totally can happen, you can't really choose with whom you are in a class) it still is leads to a subtle isolation which might by itself not cause any mental issues, but can amplify existing issues, prevent mental scare from being healed etc. And such issues don't always come from "big bad thing" sometimes small bad things wrongly processed as a child can be enough to cause life long mental issues if the child has never the chance to reprocess/recondition/overcome them.
EDIT: Just to be clear doesn't mean children should have unchecked social media/game/etc. access.