I’m working on a project that needs a similar approach to slack or discord. I know about matrix, but the person I’m working with said to be open to use a fediverse alternate when I tell them I didn’t want to use slack. I mention matrix and the fediverse as an alternative and they asked me a good fediverse option.
It’s needs to be good for team collaboration, easy to set and be able to maintain original images quality.
Ask them what they mean by “FediVerse.” I don’t know of any ActivityPub chat room software; while there could be one, trying to make a real-time interactive chat with AP seems like hammering a square peg into a round hole.
Matrix is probably the best alternative. It’s just as federated as Mastodon is. Here’s a reasonably brief, fairly accurate layman comparison of the two protocols, although the write up is for an unrelated topic.
If the concern is that the person wants full integration with the many different projects that provide AP integration, then there’s at least one Matrix bridge for ActivityPub. Honestly, it seems like a kind of horrible idea … like, how would an IRC chat room (IRC ~ Matrix ~ Discord ~ Slack) look like in a Lemmy client? It’s even a little awkward when Lemmy content shows up in Mastodon, and vice-versa. The more the UX flow diverges, the more weirdness you see in the federation.
What would this even look like? Could you follow a Mastodon account from a chat room? And would that account’s toots just randomly show up with no context in the room? Would people responding in Mastodon automatically get sucked into the room, or would the Mastodon user look like they’re having a conversation you see only one side of? And would people replying to the person show up in Toots?
Anyway, Matrix is probably the best federated solution for chat, at the moment. You have one account and can join rooms on any server, or connect to any user on any other Matrix server.