The headline feature of this specific release is the platform: GOG (Good Old Games).
For the longest time, buying Fallout 4 on PC meant installing the Steam client. While Steam is convenient, the GOG release offers a layer of future-proofing that appeals to preservationists. The GOG version is entirely DRM-free. Fallout 4 Game of the Year Edition v1.10.163.0-GOG
This means:
Fallout 4 Game of the Year Edition bundles the acclaimed post-apocalyptic open-world RPG from Bethesda Game Studios with all six official add-ons (DLCs). The version v1.10.163.0 is a specific patch level, and the GOG release denotes the DRM-free version sold on GOG.com. The headline feature of this specific release is