It includes an additional charger, wich costs 25$ in the ifixit store, + has both hdmi and Displaylink, both of wich can reach 4k 120hz. Also 1Gb/s ethernet port and 3 usb 3.1. Also firmware updates and support from valve.
X11 because my current setup on Wayland crashes constantly, otherwise always Wayland.
The only things missing is a edad cat con the left
Middle left reminds me of that majin sprite un Sonic CD
And there’s the attempt at discouraging you from going bare-metal.
I doubt that “few developers choose this” is true.