Small demo to prove that Compose is smart in its recomposition and ignores Components where the parameter did not change

SmartRecomposition.kt

class MyViewModel : ViewModel() {
    val content: StateFlow<MyContent>
    field = MutableStateFlow(
        MyContent(
            param1 = "param1",
            param2 = "param2"
        )
    )
    init {
        viewModelScope.launch {
            delay(5.seconds)

            content.update { myContent -> myContent.copy(param1 = "foobar") }
        }
    }
}

data class MyContent(val param1: String, val param2: String)

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge(
            statusBarStyle = SystemBarStyle.light(
                scrim = Color(0xFF1C1C1E).toArgb(),
                darkScrim = Color(0xFF1C1C1E).toArgb()
            ),
            navigationBarStyle = SystemBarStyle.dark(Color(0xFF1C1C1E).toArgb())
        )
        val viewModel: MyViewModel by viewModels()
        setContent {
            AndroidDemoTheme {
                DemoApp(viewModel)
            }
        }
    }
}

@Composable
private fun DemoApp(viewModel: MyViewModel) {
    val myContent by viewModel.content.collectAsStateWithLifecycle()
    Column(
        modifier = Modifier.fillMaxSize(),
        verticalArrangement = Arrangement.spacedBy(16.dp, Alignment.CenterVertically),
        horizontalAlignment = Alignment.CenterHorizontally,
    ) {
        Text(myContent.param1)
        Text(myContent.param2)
    }
}