Our company wants to migrate from Skype for Business to either Zulip, Mattermost or Hipchat. As todays news hit, we removed Hipchat from out list.
Our questions are: 1. Does the Zulip desktop app for Linux store messages for offline reading? 2. Do you use it on-prem or cloud based? (if on-prem did you by the enterprise support? 3. Do you have any video or screen sharing software in use with Zulip? We are looking into the recommended on-prem Jitsi. Also is doesn't offer much group/channel management beyond moderators and guests.