Handedness isn't just clear cut left/right. I write left handed, box southpaw, and use most utensils (forks, scissors, etc.) with my left. But I throw right handed if I have a baseball or football, play stick sports like a righty, etc.
Bute is great because he uses the power punch upstairs & downstairs as opposed to Pacquiao & Martinez who are famous because of a weak head first Ricky Hatton and plant like natural righty southpaw slugger-boxer Paul Williams.
That does sound like ambi... but youre still a lefty. I dont really play baseball so I dunno much about the stances... I hear so and so throws with one bats with the other etc.
Throwing/batting with different hands is pretty rare but it does happen. Generally you throw like **** with you off hand but again there are some ambidextrous players who could throw with either. As for me, I wouldn't say I'm ambidextrous since I can almost never do something equally well with both, it's mostly an either/or situation.
You are whatever you write with... when learning something (usually at a young age)... the brain processes it that way in the memory. It’s hard to write a 100 page essay with the wrong hand... but if you learn to play tennis and snooker with a particular hand at a young age then it sticks as ambidexterity... ... like Rafael Nadal... a right handed lefty. You can learn anything at any age... it just takes the 5-10 years of time.
writing is not a benchmark to handiness; natural handiness is built-in, you're born with it; i will write with my right hand 100 pages because i'm two times faster than with my left hand -but i had 18 years of practice. BTW, Bute boxed initially as an orthodox untill his second coach noticed during a dinner his native handiness.