It's actually not (just) the acidity. Pineapples and several other tropical fruits have an enzyme called papain that breaks down peptide bonds in a rather unique way, to the point that the texture of the meat can become quite off-putting if the enzyme is not used properly
Edit: acidic or not, it's definitely best not to put any sensitive parts of your anatomy in pineapple juice
I wonder if those tenderizing properties are what make people swear by pineapple slices on pizza and burgers
Knowing how much Hawaiians love spam, they're probably over the moon for accompanying elements that can compliment or add to or even concentrate those porkey and salty flavors
The ham on pizza is sweet though, imo not a good match. My preference is pineapple, pepperoni (or chicken), and jalapenos. Get spicy, sweet, and salty all on one slice, ето заебись.
Nah there's ways to prepare ham to be on the sweeter side, haven't heard of it being done that way for pizza though. Usually it's for a deli cut or charcuterie plate.
My preference is pineapple, black olives, and onions.
The black olives give the same salty as meats, so it works out quite nicely. I’m not typically into spicy pizza, but onions and pineapple go nicely together when cooked, imho.