The app will censor all apps other than its own bill
From Twitter they have not made statements about it
Elon Musk wants to have full control of Twitter, which is why he would be closing it down absolutely all third-party applications which serve as an alternative Twitter client. Many of these applications were very useful and allowed users to enjoy the application without major complications and even adding improvements that the official application does not have.
In this way, Twitter has announced that it is going to close its application development platform (API) to third parties for improve the security and privacy of users. This is the official reason, but the truth is that practically all social networks have an API so that developers can make applications that improve or allow extra features. However, it seems that Musk does not agree with this guideline that has always been defended and improved from Twitter.
Thus, users will have until July 11, 2022 to continue with their plans and then these applications will be deactivated and will not be able to be done again since they will not comply with Twitter rules.