I’m right-handed but I mostly use my left for things like opening doors, picking up stuff, using phone, holding food… and my right hand for things that requires fined dexterity like writing, using utensils, using keys… My friends see me using my left-hand most of the time and kept asking me why I barely use my right hand. Some people who met for the first time actually thought that I’m left-handed for some reason.
Is it really that weird to not use your dominant hand as much? I’m sure I’m not born left-handed and trained to be right-handed when I was small, I’ve been right-handed for as long as I can remember.
You may have a measure of cross-dominance or ambidexterity. Most right-handers use their left hands in a more assistive way, such as helping to balance a heavy object that the stronger right hand is holding.
Cross-dominance is where which hand is dominant depends on the task. That may describe you best. It sounds to me like for strength-based tasks, your left hand is dominant.
Ambidexterity differs from cross-dominance in that for most tasks you don’t really have a dominant hand, and can use either.
It’s also possible to be a mix of the two. You could have certain tasks you only feel comfortable doing with one or the other hand, while others are comfortable with either.
(Source: Am an ambidextrous guy. It’s not the super power some people think it is.)