PeerGOS is the best there is. Encrypted, self-hostable (FOSS of course), federated, peer-to-peer features, and its own app ecosystem. I consider it the crown jewel of federated technologies along with XMPP, Delta Chat, and Peertube

Nextcloud’s encryption… good luck even getting it to work lol. Might as well automatically zip and password lock stuff instead oof

Please support the devs I have found nothing like it anywhere!! (Currently their own offerings are inefficient compared to other datacenters but I buy it basically just to keep the lights on.)