It's definitely not an EU only thing. China, Russia and such have been doing this for years. There have been attempts to introduce it in US (EARN IT Act) as well, and the current regime there might very well end up doing that. Australia has also been pretty authoritarian what it comes to this kind of things.
I don't understand your response and the downvotes. I'm saying Chat Control will spread to other countries. I'm aware of attempts from other countries. Add France and Sweden to your list.
1. Have you ever texted someone from EU? You are now chat controlled too.
2. EU is pumping billions to foreign countries to promote EU values. How long until they condition this "help" with chat control?