https://wccftech.com/twitter-for-mac-returns-heres-our-first-look-at-the-new-twitter-app-for-macos-catalina/

Twitter has finally returned to the Mac with an official desktop app. Based on Project Catalyst, Twitter’s new Mac app takes advantage of the new APIs that macOS Catalina 10.15 offers. It is built using the same code base that the iPad app has, with specific modifications that make it work like a native Mac app. Here is our in-depth look at how the new app holds up.

Twitter used to have a native Mac app that worked really well. However, with time, Twitter started focusing on its mobile apps, which had a newer codebase, not supported by the Mac app. As Twitter kept adding new features to their platform, the Mac app kept becoming horribly outdated, until the company discontinued it.