> but you also have french fries, popcorn and even some nuts there

For popcorn at least, I'd assume it's the prepackaged microwavable popcorn that gets flagged as UPF, where it's encased in hydrogenated oils, salt, and preservatives. It's hard to think that popcorn you make at home could be considered UPF, considering that it's literally one ingredient with heat applied to it (and oil I guess if you're popping it on the stovetop rather than an air fryer).