I get that, I felt petty too, but I'm much more productive, and much happier without windows. So you gotta frame it like that. "The cloud runs on linux, I'm most productive when developing natively on something close to where we deploy, can I not use windows?", or, "I have years of bash muscle memory and automate a great deal of mundane tasks, is it okay if I use linux?"

Or otherwise make it a gentle enquiry, "I see you provide laptops, can I get a linux/Mac machine to work on?"

Framing is key ;)

Edit: personally I outright asked "can I choose my own OS, I can't deal with windows, it makes my head hurt" or something like that. If you have the confidence just tell em how it is.