I can somewhat see your point, but in my experience you can't rely on RHEL or whatever vendor Linux to correctly bring up random OEM hardware. You will slowly d

I can somewhat see your point, but in my experience you can't rely on RHEL or whatever vendor Linux to correctly bring up random OEM hardware. You will slowly discover all of the quirks, like it didn't initialize the platform EDAC the way you expected, or it didn't resolve some weird IRQ issue, etc. Nothing about my experience leads me to believe Linux will JFW on a given box, so I don't feel like Linux has an advantage in this regard, or that niche operating systems have a disadvantage. Certainly I feel like a first-party OS from the hardware vendor is going to have a lot of advantages.