My experience with the issues I’ve had from previous versions:
The graphics still crashes for me when trying to enable HDR: Graphics driver hangs when enabling HDR Edit: only on a Gigabyte G27Q monitor
LFC is still broken: Wildly fluctuating refresh rate and flicker at low framerates , Gsync compatible VRR - Low Framerate Compensation (LFC) transition not seamless, unlike on Windows (though this issue has been acknowledged now and is being tracked by Nvidia in issue 5374195).