400 Invalid_request You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure

I am getting this error when I am trying to register with Google in my IOS app. I have got the REVERSED-CLIEND_ID which looks like something like this: com.googleusercontent.apps..... So far I can open the google window and I get the 400 error.

AppDelegate:

class AppDelegate: UIResponder, UIApplicationDelegate {
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        ApplicationDelegate.shared.application(application,didFinishLaunchingWithOptions: launchOptions)
        GIDSignIn.sharedInstance.restorePreviousSignIn { user, error in
            if error != nil || user == nil {
                // Show the app's signed-out state.
            } else {
                // Show the app's signed-in state.
            }
        }
        return true
    }
    
    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
        ApplicationDelegate.shared.application(
            app,
            open: url,
            sourceApplication: options[UIApplication.OpenURLOptionsKey.sourceApplication] as? String,
            annotation: options[UIApplication.OpenURLOptionsKey.annotation]
        )
        var handled: Bool
        
        handled = GIDSignIn.sharedInstance.handle(url)
        if handled {
            return true
        }
        
        // Handle other custom URL types.
        
        // If not handled by this app, return false.
        return false
    }
}

ViewController:

    let signInConfig = GIDConfiguration.init(clientID: "REVERSED_URL_THING")

  @IBAction func googleRegister(_ sender: UIButton) {
        GIDSignIn.sharedInstance.signIn(
            with: signInConfig,
            presenting: self
        ) { user, error in
            guard error == nil else { return }
            guard let user = user else { return }

            // Your user is signed in!
        }
    }
    

If anyone came across the same issue, in Xcode's URL Types add iOS URL scheme and do not use reversed url like it was said in many tutorials. Use the CLIEND ID which Google provides:

let signInConfig = GIDConfiguration.init(clientID: "CLIENT ID ")