Those mass disinformation campaigns are being done by (sometimes "almost") nation state level actors. Governments are going to counter only some of them.

As for my own opinion - in 2020 during Artsakh war there were a few Turkish immigrant events in European countries where they'd march, yell Turkish neo-Nazi stuff, yell that they are looking for Armenians and so on. I don't remember governments of those countries (who are already in charge of regulating fascists on their streets) doing anything about that.

I think this is going to be the same here - a regulation is a price tag in disguise. Smaller actors will be barred from doing those disinformation campaigns, bigger ones or friendly with the right governments will not be.

Killing and splitting corporations is better, but the previous part about price tag is the exact reason they are not doing this. Those governments want to have bot campaigns of their own, to manufacture consent, to see what people are saying, to control the public discourse. They just don't want others to do it too.

This is a toad fucking a viper, as they say in Russian.