>Slack is competing against the likes of Microsoft Corp’s (MSFT.O) Teams, Alphabet Inc’s (GOOGL.O) Google Hangouts Chat and Cisco Systems Inc’s (CSCO.O) Webex Teams in the so-called workplace collaboration market

How is Webex competing with Slack? Slack is for chat-based collaboration with people in your workplace. Webex is for scheduling video calls.

Is there some overlapping use-case of either one that I'm missing?