And everything I've ever delved deep into how the studies were conducted, what were the real conclusions drawn, the type of content being shown, etc. never leads to what the news would have you conclude. It's basically a terrible game of telephone where parents just end up getting fear mongered into limiting device time to 2 hours a day because someone said so. Utter nonsense.
There's a lot of people making claims based on paid research with agendas to sell fear. If you think you have some real empirical evidence that will standup to scrutiny, by all means share.