Based on the version number v4.1.99.3036-GOG provided, this corresponds to an early build of Baldur's Gate 3 from early 2021.
As mentioned in the GOG forums regarding Patch 4 , this version was notorious for resetting current save games, meaning saves from earlier patches were not compatible. Baldurs Gate 3 v4.1.99.3036-GOG
This version was released around the time of , which brought significant changes to the game's early stages, including: Updated Cinematics: Enhanced visuals for key scenes. Based on the version number v4
The initial introduction of the Druid playable class. Baldurs Gate 3 v4.1.99.3036-GOG