There seems to be some conflict between the “graphical” installer’s idea

of the console size and VNC’s (which appears to be noVNC

https://novnc.com/info.html). As you can see in the attached screenshot,

the screen is cropped on all sides, particularly making the menu choices

unviewable.

Not sure if relevant, but the console goes through a successful mode switch

earlier in the booting process, where the VNC display size changes. Seems

like that should happen again when the menus start, but it doesn’t.

I’ve run other installers through noVNC successfully so there’s a good

chance this is a Guix issue, can’t say for sure though.