• Yes it federated using ActivityPub protocol. It was only in alpha release though when I last used it, and it broke with one of the upgrades. I’m wondering if it has matured yet to a V1 and if others are finding it stable now?

    • The article mentions it will be better later this year:

      Nextcloud Social is available as an alpha version for earlier releases, with an update to Hub 3 coming soon. The team at Nextcloud is working with the community to add new features and give users a way out of the Big Tech sandbox. We will make the updated Nextcloud Social a default part of Nextcloud later this year.