You can do some pretty cool things with WW SP, but I feel like working with it really makes me appreciate Linux and the Foss community so much more. WW always feels so proprietary.

One factor is that laptops need a little more design work to build out main boards and validate relative to a desktop, especially considering that you optimizing for power draw and that very little of the design is socketed. As a result a good chunk of the Linux laptop market uses OEM provided designs and then tailors their software around it. Last I heard system76 was working to bring that design work in house.