Search (Ctrl+F) for the following lines and change the values to your desired resolution: ResolutionSizeX ResolutionSizeY LastUserConfirmedResolutionSizeX LastUserConfirmedResolutionSizeY
Right-click and select Properties . Ensure "Read-only" is unchecked , then open the file with Notepad. Fortnite Stretched Resolution: Best GameUserSet...
Set your GPU scaling to "Full Screen" to ensure the image stretches to fill your monitor. Search (Ctrl+F) for the following lines and change