I think Linux + Wine should be fine for most people (with a little guidance, of course).

ReactOS isn't stable enough even in a VM right now – but the progress is nice, and I hope it will be a viable alternative for embedded applications (like ATMs or factory automation stuff). Maybe consumer use one day, too?

I don't see how that is related to what I wrote?

Mac is not an alternative functionality to: Teams, Outlook, MS Office, etc? It doesn't solve the MS crappy auth system, it doesn't give (large) businesses the same functionality that MS is giving them.

On the Mac, you can use those MS products without it taking over your user account.

You can also use any of various other products that compete with them (Google Apps, iWork, Zoom, etc).

Just because MS makes a specific package that businesses like doesn't mean that they can't use something else if MS is becoming more of a problem than they're worth.

I am a linux guy, always have been. But when I went from a Windows environment company to a Mac company I was absolutely shocked by how much less work I had to do with Mac to get everything working. Authentication, logging in, slack vs teams, just everything worked so much better.