Does this count as a moral panic?
All the examples you gave involved sorting kids into good and bad categories. There were good kids who were victims caught up. And there were bad kids, who the good kids needed to be warned to stay away from.
So far as I know, no one has yet said that any kids who use TikTok need to be separated from any other kids. And I don't remember that happening with Facebook or MySpace before them. Everything earlier is before my time.