navigation argument always taking default value or null in jetpack compose

I am trying navigation in Android Jetpack Compose. But the problem is when I try to get the parameter using navBackStackEntry it always gives null or the default value which I have set.

I am using following gradle dependencies for navigation:

implementation "androidx.navigation:navigation-compose:2.7.1"

Here is the complete code for the reference:

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
            TryingSomethingTheme {
                // A surface container using the 'background' color from the theme
                Surface(
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background
                ) {
                    val navController = rememberNavController()
                    NavHost(
                        navController = navController,
                        startDestination = "profile/12345"
                    ) {
                        composable(
                            route = "profile/{id}",
                            arguments = listOf(
                                navArgument("id") {
                                    type = NavType.StringType
                                    defaultValue = "invalid"
                                }
                            )
                        ) {
                            Log.d("MyTag", "id: ${it.arguments?.getString("id")}")
                        }
                    }
                }
            }
        }
    }
}

I guess that you are just experimenting. It is not recommended to use a dynamic value in the Start Destination. In fact, the dynamic value you use here, 12345, should be the defaultValue you gave. If you try navigate, you can access the ID.

navController.navigate("profile/1234")

But if this is something you specifically want, you can find alternative solutions in previously answered questions here. You can try them, but I believe you are just experimenting.

Jetpack Compose Navigation - pass argument to startDestination