> If it catches ANY bugs it is objectively better than no PR/code-review from a bug standpoint.
No, that's false. That's only true if you also assume that people write the same quality code whether there is a code review process or not. Which might or might not be true, no idea.
if anything I would think that person would write same code but without PR would lost the opportunity of having better quality. People are blind to own mistakes. I can't count how many times I would stare at a code not seeing something and other person would spot problem almost immediately.
No, that's false. That's only true if you also assume that people write the same quality code whether there is a code review process or not. Which might or might not be true, no idea.