>Distinct control/option/command
Way too much cognitive load. Just have a single "ctrl". Coupled with shift, that's more than enough for most hotkeys.
https://www.wired.com/2000/10/eek-a-two-button-mac-mouse/
"In recent years, the company has added "contextual menus" to the Macintosh operating system. But to activate them, users must hold down the control key while pressing down the mouse button, which more or less defeats the purpose."
Oct 31, 2000