Agree with Cliff. Budget restrictions stopped me buying new computers about five years ago. I use only Dells, currently four laptops and a stationery in the family. All are running 100% with Windows 10. None are "supported" by Dell, on Windows 10.
But, keep in mind, there is not too much on a computer, that is maker specific. Quite often, hardware and associated software comes from third party sources - the all-important graphics hardware, as a prime example.