Sorry, I was asking in context of OP "The only speech this man wants to be free is his own.", seems like there is no evidence of him bringing this statement into effect, I was looking for such evidence, as in: He blocked someone by himself for himself.
It appears that Musk is currently aligned with more extreme right wing conservative voices, he appears to tweet and retweet in their support, he blocks the oposition of such governments in Turkey and India, he more recently seems to support both Trump and Bolsonaro, both right wing election deniers who encouraged attempts to overthrow elections.
I have no particular insight into Musk, I speak only to the observation that he appears to support some voices over others and as such that is "his voice" - those who say things he supports and whose opponents he blocks.
I think the point is that he shouldn’t lie about selective “free speech” in Brazil he seems all for it to the point of getting kicked out of the country. With more friendly regimes he is happy to censor other voices than the official “state”voice. I think people are looking for consistency and honesty rather than the charade his currently projecting.