[XorNot]

Teams won by being good enough and bundled into O365. There's probably some value in making a product so available that people can use it where normally they wouldn't have the opportunity.

[ornornor]

Teams won by being bundled with the rest of the Microsoft stack and shoved down captive (corporate) users throats.

[tanganik]

I was going to comment that teams doesn't have threads and slack may still win long term, but turns out teams added threads in the last couple of months(1). So yeah.

1: https://techcommunity.microsoft.com/blog/microsoftteamsblog/...

[indoordin0saur]

I'll vouch for this. I moved from Slack to Teams and Teams is clearly an inferior product. That said, I don't think SalesForce owning Slack is really a big improvement.