I don't rule out that possibility either, it’s all just a play meant to reaffirm Trump’s true role, as there has been too much talk that Musk was the real president, not Trump. When Musk was given too much power in the White House, he did whatever he wanted without caring about anyone and overshadowed the role of President Trump.
Second goal is to be able to completely separate Elon from politics, which would be good for his career if Democrats take over the White House in the next term. If Elon maintains a close relationship with Trump, it will be detrimental to his business.

I think this is just an agreement between them and they are just putting on a show for us to see.