[LexiMax]

I'm already using Matrix for a number of open source communities. It's fine as far as it goes.

However, from a community space point of view, it seems to be more similar to IRC than Discord. Much like an IRC server, there's a public list of channels and you join them individually. There is voice and video chat, but as far as I can tell it's only person to person without any voice and video conferencing like Discord has, and I've never actually tried them to see how well they work.

Some organizations, such as Mozilla, run their own Matrix server in order to corral the community into one place, but more often than not I see communities creating a single channel on the primary matrix.org server, and "expand" by adding more channels, IRC style.

As an IRC replacement, I think it's perfect. But if you are expecting something more similar to Discord in terms of functionality, you'll likely be looking elsewhere. Stoat is what I see most frequently touted, but I can't speak to it personally.