currently the only option is to have denoiser ON or OFF. setting it on forces vantage to use 100% denoiser which can cause some unwanted blur on images.
NVIDIA noise reducer is not allowed to set the noise reduction amount, and it is only allowed to adjust the noise reduction intensity when using the built-in noise reducer of vantage.
If you use the built-in noise reducer of vantage, the UI of noise reduction quantity in the interface of vantage will be visible
Correct. Note that only the NVIDIA denoiser is available for “offline” rendering because the quality of the Vantage denoiser is not good enough for final images.