Please leave my local cousine alone, even if she is in the cuisine ;-)

I don't think you're talking about commercial grade pizza then. Do you mean something like Pizza Hut/ Papa John's or a local pizza shop?

Yes, both local and chain pizza places. From what I can tell, they do source cheapest ingredients available... which is also what every individual I know does, mostly from the same sources. And they do not seem to add any extra salt & sugar beyond what I'd expect in a homemade meal of similar quality.

I realize now that using the phrase "commercial-grade" might have implied I mean stuff like frozen pizzas in grocery stores. I did not mean that, though there are some brands of frozen pizza that taste quite good when passed through oven.

AFAIK there's a big difference between national/global chain and local pizza shop ingredients, mostly due to cost savings related to supply chain and the requirement for consistent products for the larger chains. Do you have any sources that local pizza shops and large chains use the same brand?