If Musk really does this, instead of backtracking off it, he’ll really kill the site. He had never realized that the way he uses Twitter is NOT the way that everyone does. He can’t see past his own nose, and no one there will tell him no.
I reckon he’ll either latch onto the Apple and Google TOS as an excuse to backtrack when it finally gets through his thick skull that this is a terrible idea, or he’ll double down on it because no one tells him what to do.