I am still surprised that people don't understand how good Aaron Donald is.
Floyd is not a good pass rusher. He simply plays for a team that has the greatest inside pass rusher in NFL history. Floyd's individual pass rush win rate is below average despite double teams. He gets most of his sacks due to Donald and Ramsey.
As for Quinn, it is likely he had an unusually unlucky year when it comes to converting pressures into sacks. The other issue is Pagano's defense gives up easy completions so even though he and Mack beat their guy in under 2.5 seconds at a higher right than Floyd, the ball is usually gone by then.