Stable.kt

import androidx.compose.foundation.layout.Column
import androidx.compose.material.Text
import androidx.compose.runtime.*
import androidx.compose.ui.tooling.preview.Preview
import kotlinx.coroutines.delay

@Preview
@Composable
fun RecompositionTest() {
    var counter by remember { mutableStateOf(0) }
    val list = listOf("compose") // does not change

    LaunchedEffect(Unit) {
        while (true) {
            delay(1000L)
            counter++
        }
    }

    Content(list, counter)
}

@Composable
private fun Content(list: List<String>, counter: Int) {
    Column {
        Text(text = "count $counter")

        MyList(list = list) // this will always recompose because List is not @Stable
        MyList(listWrapper = ListWrapper(list)) // only called once, ListWrapper is @Stable
    }
}

@Composable
private fun MyList(list: List<String>) {

    Column {
        list.forEach {
            Text(text = it)
        }
    }
}

@Composable
private fun MyList(listWrapper: ListWrapper) {
    Column {
        listWrapper.list.forEach {
            Text(text = it)
        }
    }
}

@Stable
data class ListWrapper(val list: List<String>)