I think it depends on who's cooking.
Ordered loaded skins off GF menu, it came and there were seasoned fries (their fry seasoning has gluten) between the potato and the toppings. Thank GOD I was a pig and bit in before my son. Whew!!
Edit 8/2/2 : Went there to order wings and was told by my waitress the fryer is NOT dedicated.
We ordered some wings to go and made other arrangements for our Celiac kids.
— Not at all
— Not Much/None
— Average