The focaccia of Puglia is famous and there is so much olive oil in it that it seems like a fried pizza even though it’s not deep fried. Also, it’s a bread, not a pizza.
A panzerotti looks like a calzone but it’s not one. The reason is that a panzerotti is fried, not baked. Panzerotti are specialities of the central and southern parts of Italy, especially Puglia/Apulia.
Panzarotti are also called calzoni fritti, fritte, and frittelle.
They are much like pizza and pizza is popular in Italy. While American pepperoni pizza is rare to find (not impossible, you just have to call it “con salame picante” to get something resembling it), I was delighted to find that spicy salami was one of the flavors on offer. If you ask for a “pepperoni” pizza, they will think you want a bell pepper pizza.