Sauce to the edge of the pizza is a Buffalo thing. Many more places used to use seasoned full sheet pans in the 70s, 80s and even 90s and sauced to the edge, but places scrapped the seasoned sheet pans for cheaper aluminum round pans over time, places closed, and only a few of the original Buffalo style pizza places remained. The good ones still use a seasoned sheet pan, shred their own mozzarella (100% WM low moisture mozz) and cut pepperoni off the stick, there’s an attachment for automatic sliders that a few places still use. You have to remember when you are talking original Buffalo style pizza you are talking Bocce. Leonardis and Imperial were spin offs of Bocce in the 70s when the style was born. Prior to the 70s and Bocce Club, Buffalo style pizza wasn’t much different than any style parlor pizza outside of NYC, New Haven, etc. Any place can now use redpack tomato and cup and char pepperoni but what makes it Buffalo style really is the moderate thickness, being cooked on seasoned sheet pans getting a bit oval with some crazy looking and not having any sort of cornicone. So many places are just cheap imitations