This is fascinating - thank you so much for replying. I used to have input speed back when we had physical buttons on phones but with the advent of touch-screen

This is fascinating - thank you so much for replying. I used to have input speed back when we had physical buttons on phones but with the advent of touch-screens, that has deteriorated for me. I hadn't considered how useful it would be to have when a small laptop isn't available. Another commenter mentioned working on a train; I can certainly see the use-case. Thanks for the insight!