No gateway to Twitter apps
All third-party apps accessing Twitter programming tools are blocked as per the updated developer policy. The new policy prohibits copying any experience the Twitter main app offers. This naturally means the end of all Twitter applications.
Applications such as Tweetbot were frequently preferred because they offered a richer user experience. Elon Musk apparently wants users to spend time in the original application. It is not known whether these rules will be stretched in the future.