Where I work,~2,000 employees and contractors, I’m almost certain I’m the one person using Linux (Fedora) and refusing to use Windows (so they deployed a cloud Windows 365 instance for me to have access to the in-house platform).
I’m blessed to hold a position for which the company would have a really hard time replacing me, I think that’s why they haven’t booted me (chances are they will at some point, but I don’t care anymore).
It still blows my mind how the IT team tries to justify being locked into Microsoft, and then telling me I could potentially become a point of vulnerability, when my system is easily the most secure in the whole company and my habits make for little to no possibility of ever exposing anything outside of the company.