X (formerly Twitter) can no longer be accessed in the Mac App Store, suggesting that it has been officially delisted. Searches for both “Twitter” and “X” Twitter can no longer be accessed in Apple's Mac App Store, suggesting it has been officially delisted.
Makes sense, the site is dying and the Mac app was dead even before musk.
Maintaining the iPad app on MacOS would have required to hire a part time intern and there’s no money for that