I've long thought that we need a name for what Zulip is other than "team chat." IMO it's different qualitatively than slack/mattermost/discord/teams &c.
I do like our current "organized team chat" quite a bit better than the original "group chat", which would often result in confusion with WhatsApp and its equivalents.
I always think of it as being halfway between those and more traditional forums (PHPBB, discourse, etc).
When introducing new people to it, I like the topics to email threads, as they also have a subject line and replies.
It also gels with the "inbox" part of Zulip's UI.