I'm actually not from the US, I was just giving it as an example because it is the most famous one that unequivocally does include it.
What I'm really saying is "free speech" isn't really one thing. It means different things in different contexts. For instance the breadth of "free speech" you should allow in what you promise to repeat (that's what hosting something is) is much smaller than the breadth of "free speech" that you should not think less of someone for saying is in turn much smaller than the breadth of "free speech" that you should not wield the power of government to punish. And people legitimately disagree on where each of those boundaries lie.
I do think I missed the mark with the comment you replied to rereading it. I raised it because when someone says "It's not a free speech platform and no one ever said it was" they are using the american republican-troll's definition of free speech that means "anything but child porn", and I think your reply was misunderstanding their comment as a result. But I don't think I successfully conveyed my point.