While I don’t know what the restrictions are on the official fluxer instance, I do think it’s worth noting that if you self host everyone on your instance gets everything for free and you can set the limits for file upload and similar stuff to whatever you want, plus self hosting was pretty easy compared to when I tried it with matrix.

Me and some friends have been using fluxer recently and it’s been pretty good, streaming works like discord so you have to click into it. It’s very similar to discord UI wise so it’s been easy to get people to swap over, and it supports self hosting which has been nice. Only complaint is that it’s missing the built in soundboard discord has but that’s a pretty minor thing.