Morning

I got my G9 OLED last week and noticed quite often when i switch on my PC and get to the desktop I get flickering as shown in the video below

I have tried a different Display port cable and the one that came with it, also updated the firmware on monitor and running latest Nvidia drivers, I thought it might be something to do with running a 2nd monitor so unplugged that but still get the issue.

I had the first G9 before this and worked 100% fine nothing else was changed. Running an RTX 3090.

Should I be returning the monitor?