https://certification.ubuntu.com/certification/make/Dell/?qu...
I do agree that it should be noted that people specifically want GNU to be big. Chromium OS and Chrome OS are fantastic operating systems that are very capable. And it's Linux. No, you cannot "apt-get install GTKapplication", but it's still very Gentoo underneath the GUI. Of course you still want a more general purpose distribution for general purpose needs.
I don't consider that a problem since Linux has always been mainly in the focus of developers. Linux is a top choice if you want a reliable work horse for your work which doesn't annoy with unwanted features.
Usual users are mostly gamers and surfers. They get along with the limitations of Windows and iOS, so they don't need Linux, and that's the actual reason for the small percentage of desktop Linux.
I wish it were different, but right now there's not much evidence there's a significant, existing unserved market for (GNU, not Chromebooks) Linux PCs.