Instead of creating a new anonymous user immediately when user is nil, introduce a short delay (e.g., 1-2 seconds). If Firebase restores the user in that time, skip creating a new user.

func StackOverFlow_forAuthState_GetOnAppLaunch() {
    guard handle == nil else { return } // Ensure observer is only set once

    handle = Auth.auth().addStateDidChangeListener({ (auth, user) in
        if let user = user {
            if user.isAnonymous {
                print("🔥 - user is anonymous ⬜️ \(user.uid)")
            } else if user.isEmailVerified {
                print("🔥 - user is email verified ✅ \(user.uid)")
            } else {
                print("🔥 - user needs email verification 🟧 \(user.uid)")
            }
        } else {
            print("🔥 - user not found. Waiting before signing in anonymously...")

            // Delay before creating a new anonymous account
            DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
                if Auth.auth().currentUser == nil { // Double-check before signing in
                    print("🔥 - Still no user, signing in anonymously...")
                    Auth.auth().signInAnonymously { (authResult, error) in
                        if let error = error {
                            print("❌ Error signing in anonymously: \(error.localizedDescription)")
                            return
                        }
                        guard let user = authResult?.user else { return }
                        print("✅ Anonymous UID: \(user.uid)")
                    }
                } else {
                    print("✅ - Firebase restored user, no need to sign in again")
                }
            }
        }
        
        // Notify UI
        NotificationCenter.default.post(name: .auth_change, object: nil)
    })
}