I recently upgraded iOS in my iPhone device to 12.2 (to provide support of latest versions for my app \"Match4app\"), and this does not appear to be compatible with Xcode 10
You don't need to run Xcode 10.2 for iOS 12.2 support. You just need access to the appropriate folder in DeviceSupport.
A possible solution is
/Applications. It's possible to have multiple Xcode versions in the same directory.Create a symbolic link in Terminal.app to have access to the 12.2 device support folder in Xcode 10.2
ln -s /Applications/Xcode102.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/12.2\ \(16E226\) /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
You can move Xcode 10.2 to somewhere else but then you have to adjust the path.
Now Xcode 10.1 supports devices running iOS 12.2