What’s a “ceramic polish” lol? That’s a typo right?
I thought the same thing.
Gotta sell the stuff over the counter, ya know?
FWIW, any 'polish' is naturally an abrasive (how abrasive depends on the polish). You're not leaving behind any 'ceramic' anything if it's worked in to a polish. It'll be abraded away by the rest of the product and wiped off with your towel. If I had to guess, it's formulated to leave a clean, prepped surface for a ceramic coating after the polishing is done.
OP, truck looks good! Post some full pics for us!