True, but keep in mind that GNOME sets the bar very very low.
I wouldn't be surprised if this will happen for Laptops soon as well, with custom in-house DEs. Imagine that Chinese OEMs will be happy to get rid of Windows.
'Polish' is the last thing users care about. If it wasn't true Windows and Android wouldn't be the most popular operating systems over decades and decades.
The point is, better UX does not always win.
Vulkan isn't any better, just the bare basic and then extension loading fun.
Game developers tend to prefer proprietary APIs because vendors actually care about the overall development experience end to end, instead of expecting the community to come up with something.
As an example, mesh shaders or ray tracing APIs weren't created on those commitites, rather yet another set of extensions taken from proprietary APIs.
I remember messing with the Warframe launcher and renaming some exes to bypass another launcher. The games run fine. The hyper complicated Chrome Embedded Framework stuff breaks all the time because it uses weird sandbox crap that is intimately tied to the windows kernel.
So the story isn't going to magically be different here. If Linux starts to get a foothold then Microsoft will just offer some subsidies to get their OS back on the market. The difference here is that desktop Windows does now run on ARM -- so if anything, Linux has less of a competitive advantage as it did in the Netbook eta.
I even ran OS X snow leopard on it for a while.
So you'll see people buying Windows laptops to run Linux far more often than you'll see Linux laptops bought to run Windows (pirated or otherwise).
Then you also have the economics of scale where building a laptop for 1k customers would work out more expensive (price per laptop) than building the same laptop for 100k customers.