We’ve known about the X everything app for months now. Elon hasn’t been hiding the fact that he wants to compete with all major forms of social media. Twitter’s acquisition was only the first step. Soon it will be YouTube and Twitch competition, then Instagram, etc.
If he were smart he would use all of these free distributed open source social platforms and protocols, and just build a front end on top of that. Front end ui and even his own APIs that just delegate calls.