Nope!
Definitely not!

No way....it’s a delicious pastry.

A calzone is a savory pastry...

A calzone is a pizza in a pocket, it doesn't apply to any other pastries.

Calzone is not pastry. It is bread. It is as FeistyFeline said....a pizza in a pocket.

And this is how the Great Dough Pocket War of 2020 began…

Lol. For real though, it's not like the "is a hotdog a sandwich" and "is cereal a soup" and whatnot debates haha, a calzone is literally only pizza in a pocket, nothing else. The word is explicitly for the one dish, just like manicotti is only a specific dish.