Everywhere I go, I feel like I have free speech by default. I suppose it's my privilege that I feel like that, but I digress. When free speech is explicitly advertised, it smells.
(There are lots of anecdotes of individual users who get temporary bans on Twitter for political speech, but I have heard those anecdotes across the political spectrum. I suspect conservatives grumpy at Twitter would be very surprised how much left-wing discourse there is about how Twitter protects TERFs, how they pay lip service to banning Nazis but don't really do it, how Jack Dorsey is probably a crypto-fascist, and so on. The parallel -- "I know of people who agree with me who have been moderated and people who disagree with me who have not, ergo Twitter is obviously biased in favor of The Other Side" -- is kind of fascinating.)