Obviously, the mockery of "free speech" as "freeze peach" is because the meaning behind that, for a lot of people complaining about it, is that they would like to say something hateful. It's so frequent that it's become a meme.
It's unfortunate, and places that put an emphasis on free speech are shitholes like gab and voat. They would like whatever hate they're selling to have a bigger audience, and it's not really on corporations to provide that.
I would say the term has been co-opted by the right in online spaces, which makes it hard to talk about. It's no longer classical "free speech," almost always you have ask, "what were you trying to say with that free speech?"
Are they being banned for being anti-government? Anti-bank? Anti-military? Anti-religion? The pro- versions of those? Or is it maybe something else. Your vision of a "leftist" crack down, could be interpreted as the "right" getting more extreme and being banned.