Heroic Game Launcher is your best option for installing GOG games, especially if they offer a Linux version. Otherwise using Lutris/Bottles is always an option. You can also just install it by running the installer through Steam using Proton.

Heroic Game Launcher is your best option for installing GOG games, otherwise using Lutris/Bottles is always an option. You can also just install it by running the installer through Steam using Proton.