I guess it's hard to know the ratio of GUI to CLI users on Linux these days. Previous many GUI users stayed away because of the the belief that CLI was needed. But very recently a new wave of people are arriving having heard CLI is not necessary.
I don't work in IT. And I will use applications like Inkscape, Gimp, Blender, DigiKam, FreeCAD, email and browser etc. So CLI doesn't do anything that I need. All these apps benefit from full screen use. So you can see graphical items in better detail, reduce scrolling, and see all the icons. So tiling windows are not much help. Its important to launch and switch apps quickly. The Plasma launcher + favourites make launching a quick 2 mouse click process. And the mouse is used for productive operation of the desktop.
