The Thaumaturge - Nukem9/dlssg-to-fsr3 GitHub Wiki
The game has native support for FSR3 FG, but it only works when the FSR3 upscaler is activated. FSR3 upscaler is inferior in quality to DLSS, so it makes sense to replace DLSS FG with FSR3 FG so that when using DLSS you can enable FG
Tested nvngx.dll 0.90 without HDR drop the files to:
\TheThaumaturge\Binaries\Win64