Hi on Linux if i enable VRR/Gsync in x11 or Wayland the monitor (45GR95QE-B) will lose input until i close the game when the monitor is running at 240hz. If I limit the display to a lower refresh rate e.g 140hz it will work fine.
This is with HDMI 2.1 with the driver 545.29.02
I have tested the same setup in windows and it works fine at 240hz