My interest in commercial OS es is on the support/ contracting parts. For instance if tomorrow Sony wants to make a non Windows VAIO machine and look for a part

My interest in commercial OS es is on the support/ contracting parts. For instance if tomorrow Sony wants to make a non Windows VAIO machine and look for a partner with an OEM program, open source OSes are out of the picture. They could take a LTS somewhere, pay another specialized company for additional expertise, but the would be no way to have an actual contract with the leading entity, and have any weight on the direction the OS will be developped (MS is also bigger than any single OEM, but they will still try to keep the majority of OEMs happy and not pull the rug under their feet. Ubuntu for instance doesn’t have such strong incentives)