Twitter helped start Bluesky (https://blueskyweb.org/) - a project focused on decentralized social -, and Bluesky released in October 2022 the AT Protocol (https://atproto.com/) offering ways to have decentralized social apps.

Will the main Twitter app be built upon an open distributed system before 2026? To resolve as Yes the system would need to be open meaning the nodes and data can be hosted by actors other than Twitter. (It doesn't need to be fully permissionless, meaning it could still have veto on which third party actors run the nodes).