If you have the GOG offline installer (e.g., from GOG.com or a backup), the package typically includes:
The is separate from the standard game and has much stricter hardware demands: OS : Windows 10 (64-bit) is required for DirectX 12 support.
(NVIDIA RTX 2060 / AMD RX 6700 XT or better) to launch. It will not run on older hardware like GTX cards. Installation Methods Method 1: Using GOG GALAXY (Recommended)
Update your Nvidia or AMD drivers to the latest version to support the enhanced renderer.