Just tried it on https://chat.zulip.org:
So far, it seems it doesn't support exact phrase search: Searching for "what" with our without quotes produces no results. Slack finds the results.
Searching for `"option"` in quotes also finds `options`, so I'm not sure if exact, non-fuzzy search is possible.
https://zulip.com/help/search-for-messages suggests that there is no support for exact-search or case-sensitive search.
Until some other team chat offers a good search, there's no way I'd consider anything besides Slack if it's up to me.
Just tried it on https://chat.zulip.org:
So far, it seems it doesn't support exact phrase search: Searching for "what" with our without quotes produces no results. Slack finds the results.
Searching for `"option"` in quotes also finds `options`, so I'm not sure if exact, non-fuzzy search is possible.
https://zulip.com/help/search-for-messages suggests that there is no support for exact-search or case-sensitive search.