For me Matrix is fine, I can use IRC, Whatsapp and Discord with it. But Element is not my cup of tea, especially with Firefox as it doesn't play any videos other users are sharing. The same videos work fine with Cinny.

I can use IRC

The fact that many Discord and IRC channels (servers?) block Matrix connections has drastically reduced its usefulness for me. When I was running my own Matrix server, I could have gotten around it by using a puppet, but Synapse is such a hog I had to shut it down, and most of the IRC rooms I want to use don’t allow Matrix proxies.

The IRC (Biboumi) and Discord bridges (slidge.im) for XMPP work still fine and running your own server is super lightweight.

running your own server is super lightweight.

Not IME. Are you running Synapse? Gigabytes of disk usage and memory leaks requiring restarts.

They’re taking about switching to Jabber/XMPP, which is what those two bridges are for, and they’re saying XMPP servers are lightweight.

It’s a bit confusing in context, I’ll admit.