The difference so many keep overlooking is that Brees was never projected to win multiple Superbowls. Brees is considered an overachiever. He was never expected to be a future league superstar or HOFer by any stretch.
Rodgers was supposed to have been the number 1 pick. Rodgers has always been celebrated(similar to Mahomes) as transcendent. While I don’t by any stretch believe his career is a failure, if he doesn’t get another SB apparence then he underachieved based on initial expectations for his trajectory.