It’s also made to be decentralized. Seems voice chat works already. Screenshare and video chat don’t seem to be released yet, but I was told that if you host your own instance, you can turn them on (vidchat and screenshare are probably still in beta/are experimental features I assume). UI layout is comparable to Discord.
Me and a friend are considering installing an instance on the server our peertube instance is installed on.
Last time I checked you can’t just simply screenshare on Element X. And video rooms requires a Jitsi opt in. Also there are many organisational features such as custom roles that Matrix frontends don’t have.