From a 2018 article on NCAA football
"Although all college footballs have stripes, the balls vary a bit from team to team. That’s unlike the consistency of the NFL, where every team gets the same ball. If a college program so chooses, it could use a ball that more closely resembles the NFL’s in size. “As long as you fall within the rule specs, you have the ability to kind of customize and personalize based on your team’s wants or desires,” Krysiak says."
So at least the NCAA is consistent in their inconsistency... I guess.