An error occurred while saving the commentJoshua McKinnon commented
Apparently they've created one recently, as I had the same question myself and initially did not find it...then just did this past week. See:
It will install Teams for each new user that signs in to the computer, which accomplishes what I needed for our deployment.
We are happy to announce that the New Conversation Button has started to roll to the general public, and should be rolled out 100% over the next week or so. We will share another update as soon as one is available.