@benjaminhollon @Binder @vazub

I literally parsed through my ~/.config/mimeapps.list trying to find others.
I can't think of any other 100% purely keyboard-navigable GUI apps, henceforth referred to as #TooeyGUIs  

(Not to be confused with #GooeyTUIs like #Quickbasic / #QB64, #BorlandPascal, and the like. :D