Not having lots of SKUs and a user-managed OS is kinda what the console experience is about.
I dunno what a “user managed OS” means. There’s no reason MS couldn’t port the exact same experience, considering current and past XBOXes are both built on x86.
As far as SKUs, I agree, but that’s only part of the console experience. The rest of it is a controller-first interface and streamlined processing. The various SKUs is also what attracts so many people to PC gaming, and in case you haven’t noticed, it is an incredibly quickly-growing segment.
They explained why in the comment you replied to.