Since 2020, there have been 40 NFL games where the QB had 40 or more pass attempts and averaged 6 or fewer air yards per attempt:
— Nate Tice (@Nate_Tice) September 16, 2022
Justin Herbert and Ben Roethlisberger each have 4 of those games.
Jared Goff has 3.
No one else has more than 2.