Poutine is officially home cut fresh fries with cheese curds and onion (brown) gravy.
Mottzarella is often substituted for the cheese curds.
McDonald’s serves poutine in Quebec, but very little in the states.
The "newer’ chain restaurants in Quebec now offer variations of poutine, including tomato based sauces, as well as the brown gravy ones.
Montreal is great for this as you can choose between the "pomme frites" Belgian style fries in paper cones with mayo based dipping sauces or poutine-both are offered all over the city.
Wish I could remember where, but I once shared a platter of sweet potato fries covered in bacon bits and 3 cheeses, then broiled to melt the cheese, and served with a ranch dipping sauce.
Quaker Steak and Lube in PA tried this, but used frozen french fries and the result was terrible