alt Hacker Newsgreat post. the only thing that was tying me to Windows at home was gaming. after Proton, that became irrelevant. (maybe it'd be different if I played competitive multiplayer games.)
curious, though--why hasn't your friend updated his Arch distro in 3 years? bleeding edge is one of the benefits vs other distros, IMHO
He's lazy, but also, when the AURs had their little exploits that affected ten thousand+ packages, he was vindicated for not updating all the time. Arch is just insanely stable. I've had no issues with Endeavour which is basically Arch with a better installed and extremely optional tweaks.
The best part is I've been a .NET developer a good chunk of my career, so Microsoft is a company I've always worked with no matter what. If they offered me a Mac at work I would say yes please, since I know I can install .NET on a Mac anyway.