While the NVIDIA driver dynamic HDR switching works fine for most HDR games and HDR/SDR scenarios, there are some rare cases where there may be issues with either the Windows HDR or games. To relieve customers from needing to constantly enable and disable HDR from the Windows settings, the NVIDIA driver dynamically switches HDR on and off based on the content. For these displays, standard dynamic range (SDR) works best.
For some HDR TVs and computer displays, however, HDR colors and luminance are not accurate. To take advantage of high dynamic range (HDR) in HDR games and videos, Microsoft recommends enabling Windows HDR (Settings > System > Display) prior to playing HDR content.