Comment by ipdashc

Zulip is phenomenal. Cool and unique concept, clean and snappy UI. I have no idea why it's not more popular. (Network effects and an unfamiliar layout, I suppose.)

I see the comments that say Matrix has improved a lot, so maybe it's fine now, but yeah, when I tried it previously it sucked. Weird UI was my chief complaint, but more importantly it didn't seem like there was a proper concept of organizations, in the sense of Discord or Slack servers? With roles, channels, even silly things like custom emojis. Matrix at the time seemed like just an SMS group chat replacement, I have no idea why people recommended it for organizational use. Maybe it's improved since.