Personally, I care about these factors for my desktops as well. CPU, GPU, memory, and (and this surprised me) SSD temps - how many fans do I need? At least three in a proper tower-style desktop. I feel like the Grinch: "all the noise, noise, noise, noise, noise!" And fans take power. Everything takes power.
So I've been running a micro-PC for a while: a Ryzen 7, integrated GPU, little 6x6x2 enclosure. It still has a fan in it, and I've got it in a space in my desk made for hiding computer devices and wires - I had to build a fan into that because it was getting warm in there and raising average temps on the computer.
My point is that these battery-optimized architectures are also pretty important for the desktop market, too. Gaming rigs with GPUs bigger than the entire rest of the motherboard notwithstanding, average desktop user would be fine with one of these micro computers. As long as you stay away from the hog software like Electron and Java applications, they're perfectly capable; heck, even rustc burns through compilations pretty fast, and that's not exactly an efficient compiler. And Go programs compile in no time on a Ryzen 7, or even 5. I suspect it'd even handle my mom and her Firefox with 200 tabs.