Meanwhile, there are more and more users with the problem:
Links from Reddit:
https://www.reddit.com/r/OLED_Gaming/comments/1kz3e9z/lg_oled_c2_pc_monitor_color_distortion_nvidia/?sort=new https://www.reddit.com/r/OLED_Gaming/comments/1kmw7fa/new_windows_update_changes_hdr_to_dolby_vision_psa/?sort=new