Is that a thing?

Threads is going to use ActivityPub to federate with Mastodon. Lots of details TBD on that front but they *say* it's going to happen. https://techcrunch.com/2023/07/05/adam-mosseri-says-metas-threads-app-wont-have-activitypub-support-at-launch/

Adam Mosseri says Meta's Threads app won't have ActivityPub support at launch

Instagram head Adam Mosseri says that Threads app won't support ActivityPub at the launch, but team is working on it.