It does look like the same since if you go to both store page for the season pass and the premium edition they show this message - Batman™: Arkham Knight Premium Edition - GOG.com
: Multiple legendary skins (1989 Movie, 2008 Tumbler, Classic TV Series) and specialized race tracks. Batman Arkham Knight Premium Edition-GOG
: Crime Fighter Challenge Packs #1–5 and WayneTech track packs. 2. Technical Specifications It does look like the same since if
: Main story completion takes roughly 20-30 hours, while reaching 100% completion (all side missions and 243 Riddler challenges) takes approximately 60.5 hours . Package Contents : The GOG version is 100%
This guide provides a comprehensive overview of for the GOG platform, which offers the definitive, DRM-free version of Rocksteady’s trilogy finale. 1. Package Contents
: The GOG version is 100% DRM-Free , meaning no activation or internet connection is required to play after the initial download. 3. Gameplay and Completion