The problem is the brand specification. Nobody wants unbranded laptops.

I (anecdotally) disagree. I'd love to have a good-spec laptop that had no logos or branding on it.

It's not so much the logos or the branding, it's the build quality. I used to run Ubuntu on old ThinkPads, ditched it like an ugly girlfriend once I could afford a Macbook Pro. Old ThinkPads were a step up from commodity PC laptops, which were a step up from desktops. In a brief fit of FOSS zeal I bought a System76 Galago Pro, but the build quality was so inferior to a Macbook Pro that I relegated it to desktop duty. If I felt the need to move off of Apple hardware for whatever reason for my primary ride, it'd be back to a ThinkPad.

Rdl specified Dell or Lenovo also for the reason that the supply chain for those two ecosystems are well-developed enough that providing customer support won't be a huge hassle.

I totally agree with what you're saying here.. That's why I sand "good spec" laptop. ;-)

But yes the question is whether or not that actually exists.

If there was then System76 would be using that provider. Actually, if there was, then everybody else's laptops wouldn't be so horrible, either.

Agreed. I love Apple's hardware (much more than their user interface), but I dislike being in public with a giant glowing half eaten apple.