Yeah like the example dudeface give, Dell have been offering Linux options since a decade ago in my country. Just have to go to their commerce website instead. Same with Lenovo here.

And both of them offer Ubuntu with the expected discount of a Windows license.

I assume Canonical did a lot of legwork to make big brands like that to adopt Ubuntu. IMO it is still the more well known Linux distribution that seems more suited for the non techy segment of Dell and Lenovo customers.