Porn (now requires age verification), online libraries, movies, some news websites, sports (because of obscure copyright laws) and countless other things.

its wild to me how so much of online america has been radicalized into becoming nothing more that digital curtain twitchers

Russia Today is banned, for one

I think part of this is preempting concerns that the EU could ban or limit X / Twitter.

They've already fined X heavily for lacking transparency, like not providing a database of advertisers or allowing researchers to access internal data to evaluate misinformation concerns. The EU has threatened that if they need to they may ban or limit X.

Musk and conservatives view X as a critical tool to spread their preferred ideology, and Musk has shown he's not beyond algorithmic and UX manipulation to achieve desired outcomes.

One is Russian media, just as Russia bans European media.

Also the world's largest library is banned in Germany.

There's a hate speech / violence law in the UK that is getting some people arrested for saying things like "round up all people of race X, put them into a hotel, and burn the hotel down." People like Joe Rogan and his ilk are re-packaging those examples as "people being arrested for just sharing their opinion."

https://en.wikipedia.org/wiki/Category:Censorship_in_Europe