Seems like speculation. Variety has a comment from Musk in its coverage. https://variety.com/2023/digital/news/tucker-carlson-launching-twitter-show-fox-news-firing-1235607928/
According to Musk, Twitter does not have a deal with Carlson. “[W]e have not signed a deal of any kind whatsoever. Tucker is subject to the same rules & rewards of all content creators,” Musk tweeted Tuesday.
Is this the latest version from the new set of developers? I think the TestFlight link changed back a couple weeks ago.