A pizza stone is a definite improvement, but what will make an absolute world of difference is a proper pizza oven (preferably wood-fired, but gas also works).

A pizza stone is a definite improvement, but what will make an absolute world of difference is a proper pizza oven (preferably wood-fired, but gas also works). I instantly went from mediocre home pizza to almost restaurant grade simply by switching from my household oven to an Ooni, despite using the same ingredients and preparation method.