Asus ROG PG32UCDM3, uses a Samsung 4th gen QD-OLED internally.
Its also the sibling model of the MSI MPG 322UR, and an upcoming unnamed Gigabyte model, so you have options if you want to get one.
Samsung sells their entire panel assembly (panel, polarizer and protection layer, carbon bonded heatsink, and unified controller assembly, but not the power supply) as one package deal, and all the monitors measure identically and have near identical feature sets.
I have mine setup to neuter HDR a bit in exchange for maximum contrast and no HDR thermal/power dimming.
* image -> HDR settings -> true black 500, not gaming or console (both peak at 1k)
* image -> HDR settings -> adjustable HDR (required for uniformed brightness)
* image -> uniform brightness on (this prevents SDR content from triggering ABL dimming)
* image -> vivid pixel: 0 (simple non-sharpening contrast enhancement)
* OLED care -> screen saver -> all three dimming controls: off (outer vignettes to prioritize super-brights in the middle, global dims entire screen to preserve super-brights, screen dims if nothing moves for awhile)
* system setup -> power setting -> performance mode
And in Windows, System -> Display -> HDR -> SDR content brightness of 31 hits 120 nits (the recommended SDR white value from ISO 3664, Rec 2100, etc).
If you're on SDR, set sRGB Cal mode and don't touch anything else in Image or Color, and it hard sets brightness to 120 nits. It is perfectly calibrated for the sRGB whitepoint, sRGB primaries, and even correctly does the sRGB piecewise gamma instead of the incorrect 2.4. Couldn't ask for more.
Oh, and the best part? I cannot calibrate this with a colorimeter and improve it... I have finally discovered a monitor that can actually do its goddamned job accurately.
