CitySample doesn't load, wierd graphic glitch artifacts, on RTX3080Ti, Win10 DX12, 64GB RAM, NVMe

Always having these artifacts for this CitySample, no other issues in the dozens of highend games that I play on Steam and Gog and whatnot… This is not a drivers issue nor a hardware resource issue, I’m on 9900k, 64gb ddr4, RTX3080Ti, latest DirectX12… and its not just this citysample, even the precompile Superman mod based on this also gives the exact same problem, at first I thought it was only the superman mod that had this issue but even stock vanilla UE5 for this sample has the exact same problem. I can move around not 99% of the scene is missing and not rendering as if they were either not there at all or somehow not able to be rendered…

I completely deleted and uninstalled the Epic Games, UE5 engine, etc and started over from scratch, even uninstalled and reinstalled latest Nvidia drivers, tried different versions of Nvidia drivers, studio and game ready too, nothing works and get this crap each time!

This is NOT working!!! Unreal Engine 5 has a massive critical showstopping rendering flaw, see hard documented proven video evidence in this case! :

try to set the default config… maybe it works… i had a similar problem when zipped a project… this was my post.