When is a laptop a desktop? When it's docked!
My work machine is a laptop, but when I'm at my desk it's docked: with a screen mouse & keyboard in effect same as a desktop.
But if I'm on the move / working at a different office I'll propbably be using it as a laptop.
Ergonomically desktops are better, but sometimes you need the mobility a laptop give.
Actually typing this hotdesking at a desktop with my laptop in my bag. Life is confusing!