Microsoft employee here.
I was actually handed a MacBook Pro on day 1, I didn't even ask for it my manager at the time just assumed.
There is a large community inside Microsoft using Linux as their daily driver.
There is a large community inside Microsoft using Linux as their daily driver.
At GitHub (where I work now), it’s standard-issue MacBook Pros.
A lot of teams at Microsoft even used Slack internally before 2020. Compliance issues (and I’m sure cost) forced us onto Teams, which was unfortunate, but as a company, Microsoft was a lot more free/open than most other companies of its size with regards to what tools teams and individuals could use — especially when it comes to what you have to do to your own machines if you want to bring your own device to work (the InTune policies are completely and totally sane, more sane than when I worked for a company owned by Univision and Univision wanted me to call the help desk anytime I needed admin access or to install something outside of the Mac App Store — things I frequently needed to do for my job).
GitHub has completely separate IT systems. I can’t/won’t comment on what changes are happening for video calls, but I don’t see this as some sky is falling moment.
This was before M1 though, since we're building for x86-64 arch exclusively I likely will never move to an M1 device.
Windows is definitely the happy path since support is pretty much baked into the OS. However there is support for both Mac and Linux.