For anyone looking at #Discord alternatives based on ease of use, a few I've tried...
#Fluxer - The most feature complete direct replacement. Suspiciously identical UI to Discord??? Everything functions well with lots of role options, emojis, stickers, etc. with everything working as you'd expect. No mobile app yet!
#Stoat - A promising app with all the bones in place to be a robust Discord replacement, but it's still super unfinished. Constantly getting error messages that don't have error text made for them yet. Lots of UI bugs. Very robust public server browser???
#Movim - Marketed as a Discord replacement but isn't remotely related to Discord. Basically an email service with public news streams. (I think I got scammed lol...)
#Matrix - Haven't tested myself but seeing a lot of reports that it's not at all viable as a Discord-like replacement.