Costco sells Ore-Ida "Fast Food" frozen fries that have a coating on them. I hate them. You drop them on the pan for baking and your fingers get oily. They are supposed to come out crispy, and the best I can say is that they don't come out limp & soggy.
I'd much rather have fries au naturel. No coatings - just the sliced potatoes, deep-fried. And then a sprinkle of salt. Sam's Club sells a frozen waffle-cut fry that is pretty good.
McDonalds fries are actually cooked twice. And have a coating. They're briefly fried at the factory to keep them crispy, and then of course fried again at the restaurant just prior to selling them to you.
https://abcnews.go.com/Lifestyle/mcdonalds-reveals-beloved-f...