Most ambidextrous people are better at different things with a certain hand.
So... the term you are looking for is ambidextrous? 😉
I'm mainly right handed, but can use my left hand for various tasks with variable proficiency.
Anything that requires more fine manipulation of digits, certainly requires my right hand. And I am terrible shooting left-handed (my body doesn't understand what to do, and I'm right-eye dominant). Same with batting, or opening just about anything.
But driving, if I'm doing it one-armed (most often the case unless the road is treacherous or very rough) I'm far better with my left arm (far more control is arm-based versus specifically the hand itself).
For more benign tasks, I can use my left hand effectively enough, but most often I can do it better with my right hand.
I wouldn't consider myself ambidextrous though, as most "important" tasks I cannot do well at all with my left hand. Driving is just about the only thing I specifically do left-handed the majority of the time, and probably because I simply developed the skill with that method because I'd rather lean ever so slightly toward the middle of the car than I would prefer to lean toward the door - I feel more out of touch with the vehicle when I'm far off center like that. That, and I like to have my right arm rest on the center console/fold-down middle seat, and free to operate controls.
If I learned to drive in a right-side-drive vehicle, I'd probably drive right-handed.