This fruit is a bit bigger than a golfball. Thick wall and about as hot as a Jalapeño.
C. bacatum
.Do you have access to google lens on your phone?
You are probably right. I was given some dried peppers by someone and these plants are the result. Here in Argentina you can come across anything from South and Central América. We have people from everywhere and of cource they bring their faborite chillis and so on with them.The fruits are very similar to yours.