On X, the phrase “free speech” means whatever Musk wants it to mean.

It’s his home and his house and he makes the rules, so long as he doesn’t break any government rules along the way.

But when you leave X’s house and enter the public spaces of the USA the phrase Free Speech carries the meaning imbued by the US Constitution.

But if you go to another country’s public space, THEIR meaning of Free Speech, if any, can hold sway.

So Musk can define and redefine Free Speech as he likes in his home because the laws of the USA grant Musk (and only Musk as holder of the corporation) Free Speech (from a US Govt definition).

Anybody else in his home has to use whatever his definition of Free Speech is. Hopefully it’s similar or the same but because the govt Free Speech stops at him and does not extend to those in his house where he makes the rules, it doesn’t really mean the same thing when we say it on X vs him.