I'm not GP, but not being able to use a Linux box for work would be a big negative in a future employment decision for me. It's not just a matter of style, but also ergonomics and efficiency (also somewhat in terms of hardware when it comes to Macbook). While I'm open to change that brings improvement, a job forcing me to use tools that I've tried and know will get in my way will make me less inclined to pick it.

Yes. I have been forced to use Windows for communication, and especially the trifecta of Outlook, Teams and Word opened my eyes as to why a lot of my colleagues weren't getting stuff done and were always hung up on weird problems I couldn't understand. Like "why is the reply on this email TOFU and doesn't even answer half the questions asked below": well, because writing proper replies in Outlook is impossible. "Why does this document look like crap even after someone has spent a week editing in all suggested changes?": well, Word doesn't do proper merging of stuff or proper templates. "Why didn't he answer my chat questions from yesterday?": well, because no proper highlights or working history in teams chats...

I feel for all people forced to work like this. I cannot understand employers accepting the massive suck on productivity this causes. For my own sanity, I will charge a premium or avoid such environments altogether.

Btw., if possible a workaround for a lot of the usual driver/VPN/that-one-special-application headaches that force employees to use windows is to get approval for vmware, virtualbox or something, install yourself a linux VM and use that in fullscreen for most things. But of course that is not always possible.

It would, but I want to stress again that this was not a fault of my employer, nor is it permanent.

It was basically the fault of Dell/Intel to provide proper drivers with my hardware, combined with the worst of timings: the first French started on the day after my hardware arrived, and I had to hastily relocate after picking it up, to avoid being stuck in a tiny temporary housing. This was then the only work-capable hardware in the house. So I couldn't just send it back when I noticed the problems, because it would have meant literally not being able to work for a while. Although with the time I spent trying to make it work on linux, then the nerves/mental health I've spent on using Windows on it, that would have been the better call in hindsight.

Anyhow, given that on-premise work is still not exactly around the corner, I'll build a ryzen workstation as soon as parts become available here, and be done with this. And I'll avoid Dell/Intel from now on.

Not GP but not being able to run Linux is weighted pretty heavily in my criteria when looking for a new job.