Macs are definitely not optimized for keyboard commands. If you feel the software you use is keyboard optimized, odds are it's not really Mac software.
macOS has been one of the best keyboard OSes for over a decade, maybe longer. Nearly everything is bindable without additional software or third party apps. This can be done on globally or app-specific. A lot of this comes from the deep script ability that used to be a priority but has fallen by the wayside in recent years.
Huh? Of all the wonky shit about my Mac, the flawless keyboard navigation is really none of that
Absolute base line example.
Copy text in terminal
Mac: command+c
Linux/windows: ctrl+shift+c (unless you want to cripple proper ctrl+c functionality in which case you can (maybe) activate it from a UI menu)
The command key on Mac is somewhat magical and engages in all sorts of productivity and finger efficiency related context switching so that you can do more with less physical movement.
I’m genuinely curious who you think does it better