Flacco and Foles both are paid more than Brissett. Heck, even Alex Smith is paid as much.
Looking at the salaries of the QBs in the league Brissett is at a very reasonable salary. If you look at the cash spent for 2020 Brissett is at the bottom of the league for starters that are not on a rookie contract.
I don't know what point you were trying to make but as far as money you missed a negative point.