RIP Third-Party Twitter Clients: In just a few days, Twitter has destroyed over 15 years of fruitful collaboration with third-party developers, and we're all worse off for it. https://www.pcmag.com/opinions/rip-third-party-twitter-clients
Although ad revenue is the most likely reason for Twitter's actions, I think there's also a larger issue at hand. Musk has made it clear that he's the boss and will fire who he wants, ban who he wants, and reinstate who he wants. The very idea that there are other applications out there that could deliver an experience not in line with Musk's vision seems out of line with his authoritarian impulses.
Ooof.