Official versions typically come with technical support and integrated features like cloud saves and achievements. Safe Practices for Digital Content
To minimize your risk profile, it is helpful to contrast how official ecosystems protect your PC versus the exposure risks presented by unverified portals: Security Vector Official Storefronts (Steam, GOG, Epic) Third-Party Networks (Ryuugames) Mandatory cryptographic signatures from known developers.
If you are unsure about a file, run it inside a sandbox environment (like Sandboxie) to prevent it from interacting with your main system files.