I don’t know who said that but that is not at all how DRM works. If the developer does not explicitly release a Linux port of the game, it will not run natively. After all, the offline installer files for Windows games on GOG (when you aren’t using a launcher) are .exe files, which will only work on Linux using the WINE compatibility layer, which automatically makes it not native.
Also, have a look at this screenshot from the actual GOG store page if you’re still not sure:
It only shows a Windows icon, this is how you know what platforms it runs natively on. If there were a Linux port, there would be a Tux penguin icon to the right of the Windows icon. For example:
I don’t know who said that but that is not at all how DRM works. If the developer does not explicitly release a Linux port of the game, it will not run natively. After all, the offline installer files for Windows games on GOG (when you aren’t using a launcher) are .exe files, which will only work on Linux using the WINE compatibility layer, which automatically makes it not native.
Also, have a look at this screenshot from the actual GOG store page if you’re still not sure:
It only shows a Windows icon, this is how you know what platforms it runs natively on. If there were a Linux port, there would be a Tux penguin icon to the right of the Windows icon. For example: