I believe the chamber tightness is likely more individual to each gun. The family 6" K-22 from the early 70s had looser chambers than a model 18 I had in the 80s. The K-22 would shoot about 1000 rds of the old waxed lead Winchester Wildcat 22 economy ammo before getting sticky with extraction, the model 18 about half that, and I think with cleaner ammo. Both shot extremely well, though I never put both on paper side by side. The cheap ammo today may be worse than the old Wildcats, it was cheap and relatively grungy on chambers, but reasonably accurate and very reliable for the most part. I think if I had a gun I liked a lot and had super tight chambers to the point of being a pain in the butt to shoot much Id get a finish chamber reamer and hand chase the chamber to open it up slightly. You could lap or polish it with various methods also. Whatever possible loss of extreme accuracy that may be lost would more than be made up with being easier and more fun to shoot. It youre not doing better level match shooting I doubt most of us would be able to tell much real practical difference, and ammo selection may make up for whatever difference with cheap ammo there may be.
It drove me up the wall having the mess with cleaning the chambers of the model 18 at 500 rds. An average day out shooting either was 500-1000 rds. That put the damper on shooting the model 18 very much. Taking cleaning stuff out to shoot wasnt part of my routine, and certainly not when I had a gun that would easily chug through many more rds without issue.