What kind of summary are you realistically looking for/expecting in an article like this? (Genuine question, no sass!)
Price, CPU performance, RAM, storage, networking, software support outlook.
I mean really though unless you have a lot of time I don't think there's anything close to worth leaving the software support of Raspberry Pi for.
A table or similar where it lists the maker, cost, board name, ram, soc, arch, and maybe other columns like high end/low/budget friendly, and size form factor.
That would be helpful before you dive into the details, for example, I build drones, and seeing nvidia Xavier specs I would be thrilled about it until I see its size and power consumption. Great article btw!