Yesterday I tried cutting a vegetable with the knife in my non-dominant hand and it was a weird and uncomfortable thing. I wonder if there are people who have that distinct discomfort of using your "bad" hand, but on both hands?
I don't think it would fall under ambidexterity, because that kinda implies someone is comfortable with either hand, but could someone be uncomfortable with both?
A version of what you are saying is called cross dominance. Where a person is "handed" but users different hands for different things. For example, I write right handed but play sports and shoot left handed. I use left handed scissors but right handed hammer, screwdriver. All of the things feel awkward with the wrong hand but that hand changes with the task.
I've been a carpenter for over thirty years, but I've never heard of or seen such a thing, and I can't even imagine what one would look like. Hammers and screwdrivers are (generally) bilaterally symmetrical.
They are saying they personally use their right hand for the hammer and screwdriver, but used the handedness of the scissors instead of just saying their left hand.
Related to this, but also not really, is how I feel as a right handed person playing guitar.
I mean, sure, the right hand is doing some picking, but the left hand is up there doing all the clever stuff and the right hand has no idea how it manages to do any of it.
I play strings right handed. It seemed weird to me too that the off hand is doing the easy work. Playing left feels wrong like batting right does though. I guess the rhythm is easier to control with the dominant hand and hitting the wrong note/chord doesn't matter as much when you're in time?
They are so coordinated it's hard to tell by looking that's for sure. Keeping time has always been the hardest part for me though so I find drummers and bassists pretty impressive. RIP Phil Lesh
For me, it's the other way around: I write with my left hand, but I'm right-handed or right-footed when I do sports and I also use tools like a hammer with my right hand.