I dont think there are any federated chat systems with support for group calls and screensharing besides matrix. Maybe xmpp but i think its not natively implemented and more of a client add on. Matrix still misses some things (like sharing application audio) but its the best we got if you dont want to get caught in another unfederated enshittification spiral.
I dont think there are any federated chat systems with support for group calls and screensharing besides matrix. Maybe xmpp but i think its not natively implemented and more of a client add on. Matrix still misses some things (like sharing application audio) but its the best we got if you dont want to get caught in another unfederated enshittification spiral.