It's not that Linux became “GUI only”, but that the Linux desktop has become far more complete. The modern desktop we know today ships graphical tools that cover almost every common task in ways that...

Alt: an animation where every frame is a separate painting. the paintings are all zoomed in so you only see the face of the subject of the image and they are positioned in a way that consistently places the eyes in the same spot. The subjects have nothing directly in common, they are of different gender, have different facial hair and hair color and are wearing different clothing, aside the fact that every single one of them wears some kind of hat.