Ah, good to know! I suppose I've been biased, as the companies I've worked for that are heavily Microsoft dependent have all been Windows-dependent as well. Also, since I posted that, I've noticed that Teams is now opening up freely to everybody, which will probably also encourage macOS adoption.
I do maintain my prediction that Microsoft will be quite slow to provide Safari support. I'd suspect companies that do a lot of browser-based screen sharing with outside individuals will primarily stick to the well-established, purpose-built platforms, and that Teams screen sharing will mostly be used privately, with other group members. (Just an opinion, obviously.) And yes, full A/V in Chrome will be welcome to many.
Personally, I'm especially anxious to see Desktop Sharing to be implemented separately from video/voice calls within Teams. That is one of the main impediments to full adoption that my team has. While it's functional now, as one can just disable the camera and microphone, it's not very intuitive, and when people see an incoming "call", they aren't likely to realize that it's really just an attempt to screenshare.
