If it’s that easy why isn’t every pizza good? You know it’s a lot more nuanced than that. Salt content, hydration, type of flour, fermentation time, proof time, type of pizza you’re trying to make? Anybody can make dough, pizza was always an affordable food to make and eat from the beginning of time so it doesn’t have to be a culinary institute but dough is the most important part of any pizza so yeah it’s flour water salt and yeast and sometimes olive oil but it’s way more than just the ingredients