Would guess a driver issue is likely.
Please attach a log. Proton or dxvk.
Also try to make an apitrace of the issue if you can.
Didn't have much luck with the api trace but here's proton log:
dxvk logs:
it seams to be an issue with mesa. closing
proton 8.0-3x1 2023-08
There is flickering on screen, textures flickering? amdvlk does not work with this gpu ( for me it doesn't) so I can only test mesa-radeon radv. I tested 23.1.6 and 23.3 devel. I dunno if this comes from the driver of from dxvk. Any variable I can try to fix this ?
Video showing the issue.
https://youtu.be/kjmljh4sSYc
Software information
Dirt rally 2.0 , 1280x720, medium settings, AF 8x , 2x msaa
Asus rog Ally