it might be the fruit of the plant, but peppers are botanically speaking vegetables, and more closely related to tomatoes, potatoes and eggplants, than apples and oranges. OP is asking for fruits other than pineapple to put on a pizza, not how far the definition of what a fruit is can be stretched. you might be partly correct, but not in the context of what this thread is about.
pepperonis are paprika, wouldn’t that make it a vegetable? i think OP is aiming at a more common definition of fruit
Kick-a-poo? really? 🦶💩