The Mac system isn't like a dual-control drivers ed car that two can alternately control
while navigating through more difficult urban terrain. Or the older trash truck with extra
controls and steering 'on the other side.' Some basic airplanes were like that, too.
And the feature set you suggest hasn't existed in any Mac; although impaired persons
have been able to utilize dual mouse, dual keyboard, and other input to one Mac. Even
a few who've used a USB mouse, as a foot-switch. A KVM switch allows separate use
of dual controls and displays.
Then, there are gaming controls...
How to use a game controller with your Mac ... get double-duty from a gaming ... own
hands by using a third-party controller utility. One such utility is Chibata ...
https://www.macworld.com/article/2597642/how-to-use-
In any event...
Good luck & happy trails! 🙂