@Composable
fun FlutterScreen(route: String) {
    AndroidFragment<SimpleFlutterFragment>(
        arguments = SimpleFlutterFragment.buildRoute(route)
    )
}

NavHost(navController = navController, startDestination = "main") {
    composable<Main> { MainScreen() }
    composable<Flutter> { FlutterScreen(it.toRoute()) }
}

I want to keep ui without recomposition/redraw while navigate back or display FlutterScreen again

@Composable
fun MainScreen(vm: NavigationVM = viewModel()) {
    val navUiState by vm.navState.collectAsState()
    val state = rememberSaveableStateHolder()
    when (navUiState.bottomIndex) {
        0 -> {
            state.SaveableStateProvider("home") { HomeScreen() }
        }

        1 -> {
            state.SaveableStateProvider("flutter") { FlutterScreen() }
        }
    }
}

I am trying to use SaveableStateHolder, it can holding HomeScreen state but not working on FlutterScreen.