Really? Teams is the most sticky? Teams sucks. Excel and PowerPoint are the most sticky parts, and Teams just comes bundled with those.

Perhaps he has a very narrow definition of "the MS cloud productivity stack"

Windows? Office? Not cloud, in its roots. Active Directory? Entra? Azure? Not productivity. Github? Not MS. Copilot? Not sticky.

I agree that Teams sucks, but speaking to people who are locked into the Microsoft environment, they love it.

I guess people love having a chat/videoconference tool available.

As for loving Teams ni particular compared to other solutions, I think it is far from the truth.

Yes in some ways. Teams being bundled means that Slack and other messaging apps have to justify against a sunk-cost solution.

That makes teams very sticky.