My front fender had 16 inch long scratch that I couldn't remove after 2 stage paint correction, but it disappeared after the PPF applied.Maybe very micro scratches - If it hides them - then it's not high quality transparency clear film. PPF does not add depth to your paint or make it super slick.
XPEL Ultimate Plus - top tier PPF.
It looks like you have very limited knowledge about the PPF, but that's okay. most people don't know unless you do this for a living or installed whole car PPF on several cars (like myself).