I think depending on the permutation of OL quality and QB quality you have different results:

Elite Top 5 OL and Elite QB = Super Bowl team

Elite Top 5 OL and Decent QB = makes QB look much better than they are

Elite Top 5 OL and bad QB = QB looks a bit better than they are, makes OL look much worse

Decent OL and Elite QB = OL looks amazing

Decent OL and Decent QB = your average middling team’s situation

Decent OL and bad QB = QB makes decent OL look terrible, most fans of teams with bad QBs always also claim their OL is terrible

Bad OL and elite QB = OL looks fine

Bad OL and decent QB = OL makes QB look terrible, I think this is the cause for most of the guys who look terrible early in their careers and succeed on a new team

Bad OL and Bad QB = 2023 Jets offense

I agree that an amazing QB does wonders for OL stats, but the other side of the coin is that I think bad QBs can make OLs look way worse than they are. Bad QBs get themselves sacked by holding the ball too long, running into pressure, generally having bad pocket awareness (think Zach Wilson) and they also allow defenses to always have a numbers advantage in the front 7 so it makes their rushing success worse as well