I’m the same way for the most part. The only reason I’m right handed at specific things is because those things were made to be done by right handed people. Computer mice, guitar, etc. I know there are lefty versions but you have to go out of your way to get them.

Also, I think the convention of right handed/left handed guitar is backwards. It should be based on fretting hand, not strumming hand. Although I play the standard right handed guitar, it felt natural for me to fret with my left hand. Lots of lefty guitar players are otherwise right handed people