My app isn’t a game app, but iOS 18 always enable Game Mode for my app automatically. I didn’t find a switch to disable it in Xcode.
Game Mode is opted in for some existing applications (applications that haven't been updated for iOS 18) automatically depending on a number of characteristics. If after you update your application to iOS 18 and you find that it is still opted into game mode and you do not want lower-latency audio, lower-latency game controller input, or other characteristics of Game Mode, you can add GCSupportsGameMode=false to your app's Info.plist.
