Earlier quoted context omitted.
Aren't layers a form of stateful control?
I think the distinction __s is making is between layer toggles (layer is active between layer key presses, described as stateful) vs layer modifiers (layer is active while layer key is held). And there are definitely reasons to minimize keyboard state. I've been playing around with programmable keyboards (running RMK in my case) with several thumb keys. My thumb was getting fatigued, so I tried using a layer toggle t…
My issue was tendon overuse in my fingers, so low force switches & column splay worked for me
(splay is where the columns are not aligned, mapping to the fan out of the human hand, see TOTEM https://github.com/GEIGEIGEIST/TOTEM)