What’s keeping Twitter alive is that it’s still the best social media site of it’s kind. Every single Twitter competitor has failed, including Zuckerberg’s Safeway Select version.
People will complain about how much they hate Twitter, and they’ll still keep using it. And that was already a thing before Musk bought it.
Changing the name will have no effect on this. These tech companies change their name all the time anyway. Facebook changed to Meta and nobody gave a fukk. People still call it Facebook anyway.