When shooting handguns, I use 3 hands, sort of. 2+1 =3, right?
I use either one hand or two depending on the gun, the load, and the type of shot I want to make. I have handguns ranging from .22LR to .45-70. SA and DA, hammer and striker fired, semi autos, revolvers and single shots.
I shoot them all, one handed, or two handed, depending on what I feel like. And, I do it offhand most often standing. At ranges from 0 to 200yds.
IF you hit your target and you don't get "bit" there's no wrong way to hold a handgun.
Anyone who tells you different is selling something....
One of my favorite "games" is shooting off hand, one handed, left hand in my back pocket, shooting at the 200yd gong on the rifle range. My favorite for that is my Ruger Blackhawk 7.5" .45 Colt. I can do it with any gun you hand me (after a few sighter shots with an unknown gun & load), and have. Once I "have the range" for the gun I'm shooting I can usually hit the gong about 70% of the time, or better, provided the gun is accurate enough to do it.
Yes, I will happily shoot a .44 Magnum one handed. Also things that recoil less and things that recoil more... I do usually shoot my bigger heavier handguns two handed, but mostly my offhand is there to help hold them up, not because I need additional help with control.
I don't consider myself physically exceptional in any way, or highly skilled, but I have practiced a bit..