Actually, according to the Nova Wikipedia page, the packaging of potato chips would push them into UPF. The actual, non-edible bag with the slogans and other soothsayings.
It is the case that several of the prominent voices against UPFs have said some ridiculous things in this direction. Like that a packaged lasagna that is made entirely from ingredients and processes that a home cook would use to make lasagna is bad because it comes from the same corporations and market forces that also produce the frozen lasagnas that are loaded with stabilizers and added sugar.
Potato-chip bags are probably the most sophisticated packaging used for any food you see routinely.
That does not, of course, mean that they are bad for you.