An argument can be made that the vast majority of “free speech” polemics from US oligarchs are a ruse.
They couldn’t care less. They see it as a tool to manipulate plebs and promote their financial interests as well as leveraging such polemics as a cover for corruption.
With respect to Musk, it is likely a republican administration will cancel any legal proceedings against him and give him a formal “get out of jail free” card. Although some of Musk’s posturing is likely tied to his degenerate tendencies.