Isn’t there a difference been “diet” and “zero”? Like doesn’t one use aspartame and the other use a different “fake” sweetener?

Diet coke retains the “new coke” recipe but with aspartame whereas coke zero is the “classic coke” recipe just with ace k and aspartame

I think, idk what I’m talking about I just like coca cola (the drink, not the company)

Edit: I have learned I had this backwards. Diet coke predates new Coke, and new Coke was a sugared version of that recipe. Not the other way around