Ok maybe we have some misunderstanding here. My friend had internship in one computer store, where you could order custom built computers. The most of them were sold with windows license.
Maybe that changed, idk. But I see that many stores sell computers with Windows installed and they are custom builds.
I keep fingers crossed, because in past 5 years I tried to use Linux many times and it always ended with issue with graphic card drvers
There are other options, qwant, ecosia…