I have a similar but opposite experience. Since around 2015 I've mostly been working with people who primarily use Emacs. In 2014 I was the only weird one, then next team about 3-5, then a dozen, then there was a team of a few dozen where only two were using Vim. On my current team also most of the devs are Emacs users. However, a lot of people use Emacs with Evil-mode, so I guess they can be considered vimmers.

Also, I don't remember the last time when I worked with anyone who writes code and uses Windows.

Anecdotal experiences can lead to a warped understanding of reality; in mine, Windows and non-emacs users are niche.

My experience aligns with this. I work for a bigco. Yet to meet a fellow Emacs user.