There are no installation instructions.
Wrong on that point: https://github.com/doitsujin/dxvk?tab=readme-ov-file#how-to-use , but keep in mind dxvk is primarily aimed at Linux use.
I just want to fix the lightning in Watch Dog 2
On Windows you simply need to copy either the 32-bit or 64-bit dlls, depending on the game, next to its executable and launch it as usual. Since Watch Dogs 2 is a d3d11 64-bit game (you can check on PCGW for example), you'll only need the 64-bit d3d11.dll and dxgi.dll .
For common issues on Windows see: https://github.com/doitsujin/dxvk/wiki/Windows
P.S.: In case it's still not clear from the usage guide, you'll need dxvk-2.6.1.tar.gz, not the sniper/native version.
Regarding to Watch_Dogs 2 flickering on Windows, overriding driver profile would be a better option than using DXVK, otherwise EasyAntiCheat will get disabled.
It's so confusing. There are no installation instructions.
I just want to fix the lightning in Watch Dog 2