Comment by emil-lp
Roll your eyes if you want. A professional takes tools seriously, that includes key bindings and shortcuts.
Yes, it's not the time it takes to type that's the matter, but once you're in the zone you need to stay there without any resistance.
This.
For me, navigating with shortcuts feels like I can keep my inner monologue, it is part of it, maybe because I can spell it?
Dunno, but reaching for the mouse and navigating around breaks that, even if it can be more convenient for some actions.