Busted my Corne-ish Zen yesterday, going back to an Ergodox EZ (until I received 2 new Corne, including one as backup) I can tell that leaving a comfortable and efficient hand based setup is literal pain, both physiological and cognitive. I write and code using Vim (so navigation with keys) and browse with Tridactyl (same principle). It's very rough going back.

Also I work in XR and rely heavily on hand tracking and I'm precisely trying to use that accident so re-consider what does typing mean without a keyboard. How can one use hand tracking in XR as input without relying a virtual keyboard, which is so slow and lacks tactile feedback.

Anyway, all this to say yes, ours hands are impressively precise, fast, flexible. We take them for granted but it's definitely worth spending a bit of time training them, considering the interfaces at different level, ergonomic, physical interface, firmware, then the software with its UI.