What evidence is there of this?

Honestly this thread has been pushing me more towards the Musk camp, which I didn't think was possible. But not one person seems to be able to point to specific, concrete criticisms with references.

I mean, it's covered enough in media.

e.g.: https://www.businessinsider.com/free-speech-absolutist-elon-...

His reactions towards criticism (like harassing or banning journalist criticizing Tesla, or that whole fiasco with his submarine) are always well covered too. And while it's not exactly suppressing free speech, that level of pettiness doesn't look too good.

Also, how is this pushing you towards the Musk camp? (The fact that there's such thing, and there is, is troubling on its own)

If you believe every free speech proponent secretly means speech they like, you may be projecting. To be fair, I may also be projecting.