SKScene using full resolution of iPad in SwiftUI

Coming back to coding after a break I am now trying to use SpriteKit within SwiftUI

I would like to use the full resolution of the iPad (2160 x 1620) for my Game Scene however the code I have renders the scene beyond the bounds of the screen. It's not scaled properly I suppose is what I mean. It seems the display is still in the 1024x768 size and my scene is rendering beyond the viewable area. Sorry if I am over explaining things here!

This is the code in my ContentView

        let screenSize: CGRect = UIScreen.main.nativeBounds

        let screenWidth = screenSize.width

        let screenHeight = screenSize.height

        print("Screen width = \(screenWidth), screen height = \(screenHeight)")

        let scene = GameScene()

        scene.size = CGSize(width: screenWidth, height: screenHeight)

        scene.scaleMode = .aspectFit

        

        return scene

    }



    var body: some View {

        let screenSize: CGRect = UIScreen.main.nativeBounds

        let screenWidth = screenSize.width

        let screenHeight = screenSize.height

        SpriteView(scene: scene)

            .frame(width: screenWidth, height: screenHeight)

            

            

            

        

        

    }