The OS is one of the important part of the experience of using a computer. So it makes sense to filter first on what kind of OS matches what you want. I run a M2 MBP and I wouldn't use it if I couldn't run linux. But in terms of hardware it's a truly great machine. The first laptop where I'm satisfied by the power. M4 doesn't have linux support(yet).
I don't see how that is a relevant distinction. Most PC and laptops have no Linux support if you view it like that. The point is Linux runs great on the ones it's available for.
