How to show a composable just for e few seconds?

I have a Text composable within a Box:

Box(modifier = Modifier)
) {
    Text(text = "BlaBla"    )
}

How can show the Box/Text for a few seconds, only?

You can use LaunchedEffect and delay with a boolean flag and set it false after time specified

@Composable
private fun TimedLayout() {
    var show by remember { mutableStateOf(true) }

    LaunchedEffect(key1 = Unit){
        delay(5000)
        show = false
    }
    Column(modifier=Modifier.fillMaxSize()) {
        Text("Box showing: $show")
        if(show){
            Box{
                Text(text = "BlaBla"    )
            }
        }
    }
}