This is all just unenforceable theater. Are they going to jail or fine open source developers if they create an OS that doesn't support the requirements? Are they going to do customs checks for OSs? Firewalls?

These kinds of laws just seem like unworkable messes to fool the tech ignorant into thinking they care about kids.

Application side I get, there is an entity there running the application, that can be fined or banned or what have you. But software itself? No.