Crysis 2 and witcher 3, yup valid points there, wasn't that largely because it was tied into the "gameworks" blackbox of nvidia with the "hairworks" and whatever the other one was though? That and as you said, there was no option in game to adjust the effect/tessellation, with the new nvidia strength i.e. RT, every game has the ability to scale the RT settings to what works best for said hardware i.e. it's not just simply an on or off switch like we had with "gameworks" and "physx" effects.
Maybe nvidia could do something similar with future titles, time will tell....
Problem we will have is a bit like when talking about ampere vs rdna 2 RT games, you'll get that one side who say "nvidia sponsored games overdo RT to make rdna 2 look bad" but reality is, they aren't "overdoing" or making RT more "complex" than it needs to be, it's just simply RT is incredibly demanding and the likes of cp 2077, DL 2, metro ee have RT dialled back substantially in the grand scheme of things.
I can't comment on if the improvements mentioned by nvidia for the 40xx, cyberpunk overdrive RT mode are possible on ampere and turing but even if it wasn't possible to gain the same improvements that the 40xx will see.... I bet you people will say "zOMG nvidia have gimped ampere RT" anyway
