Vanilla installations are much easier to update through the official Apple software update mechanism.
The safest way to obtain macOS High Sierra (10.13) is directly from Apple. Even though it is a legacy version, you can still access it through official channels: niresh high sierra link
Niresh is a "distro," which is a pre-packaged version of macOS that includes third-party drivers (kexts) and bootloaders like Clover or OpenCore. While official macOS installers are intended only for Apple hardware, Niresh versions are patched to support various AMD and Intel processors found in standard laptops and desktops. Key Features and Considerations Vanilla installations are much easier to update through