I've not looked into this chat control thing (I did sign the thing opposing it, don't worry), what's it about? Specifically, how would they prevent me using a chat app they can't look into?

It's a stupid thing to go at anyway, chat. Its obvious people will hate it and organize against it. On the other actual pedos will find a way to encrypt it if they know someone could be watching. And on the other other hand they set so many guardrails, it would take a shitton of judges and signatures to actually go and look.

It would make way more sense to put more effort in other places. I think, but I don't know a lot about hunting pedos.