I'm part of the exodus from reddit, and have made the active decision to start de-cloudifying my life. I've got my own media server, and working on a Nextcloud for the home.
One of the biggest pieces of software that I currently use though, which has way too much access to my hardware is Discord. I know of old school software like Teamspeak and Mumble, but those aren't quite what I'm looking for. They lack some of the features that discord has, such as the chat rooms, or online indicators for friends.
Does anyone know of any good alternatives?
EDIT: Thanks for the suggestions! It's looking like Matrix is going to be the way to go
Matrix is probably the best solution. There is a bridge feature that allows you to merge a Matrix room with a Discord channel to the members can tack to each other. This allows for a smooth transition of communities away from Discord.