Hi i have a z3 and i keep finding that my fingers keep touching both sides of screen and making the screen go in to arrange home page as if i have pinched the screen - is there any way to stop this ?
I'll refrain from the tactics of certain other companies who might say something like, "You're holding it wrong."
You probably can't change that in the stock launcher. You could consider installing a 3rd party launcher like Nova to see if you can find one that doesn't have that kind of feature.