But if you want to dial back to sRGB color (DCI-P3 is the native gamut), there’s a mode for that which grays out all other image controls save brightness. Accuracy is good, so this monitor doesn’t really need adjustment.
Custom is the default mode and the best place for a calibration. The Game menu accesses 8 picture modes, which are aimed at different game types.
The quick menu lets you change inputs, engage PIP, power off, or bring up the full OSD.