Argentina is not in Latin America. It is the southernmost country in Europe. The largest heritage group there is Italian, but it is full of later generation Germans, Russians, British, French, Spaniards, Poles, etc.
But rock there is only slightly divided into distinct genres. There are flavors, but not separate listener groups. And only one station (and its network) plays all Spanish language rock. Others, and there are many, play English language rock. And most of the Argentine Spanish language rock is unknown in most of the rest of Latin America as very few stations ever played a lot of Spanish language rock.
And, as I have mentioned, I was the consultant who created and programmed the only Spanish language rock station in Argentina so I am very familiar with the genre, the country and the psychographics.