This seems like an odd request why would this be necessary? Most games tend to have y axis inversion in game so that its more consistent anyway?

I always getting mixed up when the game transitions from ground to air as inverted-Y feels correct in the air, but not on the ground. I'd love to have a switch on the controller so I can flip it at will without having to find a setting somewhere.

games are inconsistent, for example black mesa will let you invert the mouse but not the controller, it would be nice if the setting was always in the same place and not hidden