@p1jakub, Jakub
I chose to go with Linux / ubuntu because I didn't want to be held hostage by Microsoft or Apple.
So far, I think the weakest area is in photography, but as more users migrate away from Microsoft, I think that is going to change.
Pinta is OK for light editing. I still don't like it as well as my old software. Pinta is far more user friendly than GIMP. The only thing I have against GIMP is the longer learning curve. I also don't think it is very intuitive.