You are only here for the Single-Player story. It is not required for the main game and skipping it will keep your install size smaller.
"fg-optional-psn-services.bin" is a component of a FitGirl Repack , typically for PlayStation-to-PC ports like Ghost of Tsushima God of War Ragnarök Purpose and Functionality Optional Content fg-optional-psn-services.bin
The file named fg-optional-psn-services.bin is a specialized setup file associated with digital game repacks. In this context, stands for the repacker "FitGirl," while "optional-psn-services" refers to the files required to run Sony's PlayStation Network overlay or multiplayer services on a PC. Because it is an optional file, users can safely skip downloading it if they only intend to play the single-player campaign offline. 🛠️ What is the File Used For? You are only here for the Single-Player story