Private companies should have the freedom to ban/censor whatever content on their platforms they want. I’d prefer if they don’t, but we shouldn’t force governments to prevent companies from creating their own rules about how people can use their own software

Governments however should not interfere with citizen’s freedom of speech - there should be no fines/arrests for insulting politicians. Otherwise those governments are actually authoritarian and repressive.

Allowing private companies to do anything they want, when there are only a few large private companies, makes them a shadow state. Europe is much more willing to restrict companies from becoming shadow states. If they make a law that says bank transfers must be used for large payments (or if that becomes de facto true) they also make a law that says banks must give accounts to everyone.