my bad.....:o)
It used to be that all balls were supplied by the home team. Visiting QBs hated it.
during another time frame the NFL made them use new balls. One set of SB QBs (both teams) conspired to replace all of the balls with ones they’d broken in. All the QBs hated that.
In 2006, Peyton Manning and Tom Brady made a presentation to the competition committee on behalf of QBs across the league to let visiting teams bring footballs - which was accepted.