I doubt it. I think this is a replacement for the existing on-prem Outlook, as well as replacing Quip and Workdocs which have been languishing for years. But I

I doubt it. I think this is a replacement for the existing on-prem Outlook, as well as replacing Quip and Workdocs which have been languishing for years. But I really doubt this replaces Slack/Chime for chat/video respectively.