I have used a 60% for the past 4 years or so, and have found it to be just fine for daily coding. I use VIM keybindings in my text editor, so my navigation keys

I have used a 60% for the past 4 years or so, and have found it to be just fine for daily coding. I use VIM keybindings in my text editor, so my navigation keys are on home row and I don't need them (for non-VIM contexts, I just use FN+WASD, which is pretty effortless). I also mapped Caps Lock to ESC, since I never need that anyways, and it's more efficient. I don't think that the F-keys or Home/End/Pgup/Pgdn cluster are really critical for coding (plus the F-keys can be emulated with FN+numkeys). Obviously, some editor bindings may require those keys. It really seems to me like the only thing you lose with a 60% is the arrow keys, and you can always go to a 65% layout if you need them. I use a 40% Planck for a while, and honestly didn't really like it much (got some strain in my pinky after a while).