Essential language files. While titled "selective," you must download at least one language (usually English) for the game to have voices and text. fg-optional-videos-4k.bin: High-resolution cinematics for users with 4K monitors. is worth the extra download size?
The primary purpose of "FGOptimalBonusSoundtracks.bin" could be to store data that allows the game to access bonus soundtracks under optimal conditions. This ensures that during certain events or conditions within the game, specific music tracks are played to enhance the experience. fgoptionalbonussoundtracksbin