Dell even sells some preloaded Linux laptops, IIRC... what gives, Dell? What gives is that the Developer Edition gives them permission to make the other models

Dell even sells some preloaded Linux laptops, IIRC... what gives, Dell? What gives is that the Developer Edition gives them permission to make the other models 110% Windows-only because "if you want Linux just buy the Developer Edition". In their minds there is no reason to make the normal edition support Linux.