Based on standard naming conventions in flight simulation and open-source tools, this file is most likely related to (an open-source flight simulator).
You will typically see this file in the root directory of a game's installation folder before the setup process begins. It is common in titles that feature robust creation tools, such as: series (Map Editor) Baldur's Gate 3 (Digital Deluxe/Editor content) The Witcher 3 (Modding tools) 🛠️ How to Use It fg-optional-editor.bin
fg-optional-editor.bin allows developers to offer a range of editing features without making them mandatory.fg-optional-editor.bin helps ensure that applications built with Qt can run seamlessly on multiple platforms, including Windows, macOS, and Linux.