@firstname.lastname@example.org @orbifx I've mentioned the different between #Riot and #jabber on here, but the main reason I haven't tried setting up a Matrix server is because their docs make it sound scary and discouraging.
I basically mastered #Prosody in a weekend, forgot everything after having to not touch it for years, and then relearned it quickly.
Matrix has several reference servers, and their support channels are inside, so I can ask questions unless I create an account on someone else's server...
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko