So, finally, Musk's minions have acknowledged why they locked out third-party Twitter clients: The purpose is to force users onto Twitter's own website and apps.
Remember, they lied earlier to justify killing off the competition, claiming violations of the rules. Since there were no violations they could point to, they rewrote the rules.
Anyone who trusts Musk and Twitter at this point is willfully stupid.
https://www.engadget.com/twitter-new-developer-terms-ban-third-party-clients-211247096.html
h/t @andybaio