You want access to games or services that are either better or only available on Windows without having to deal with the desktop Windows interface. That is literally the reason to buy it. Game Pass and popular live services can woo plenty of people over.

What would that be exactly? Gamepass already works great on linux, it’s a better experience on my steam deck than fighting with my windows laptop.

It seems like the main audience is people who are scared of Linux and just don’t want to learn something new.