Row(Modifier
    .fillMaxWidth()
    .height(IntrinsicSize.Min)
) {
  Text("Hello", fontSize = 34.sp)
  Icon(Icons.Default.Check, null,
    Modifier.fillMaxHeight()
    .weight(1f)
    .background(Color.Red)
  )
}

Modifier.aspectRatio(1f)

Row(
    Modifier
        .fillMaxWidth()
        .height(IntrinsicSize.Min)
        .background(Color.Red)
) {
    Text(
        "Hello",
        fontSize = 34.sp,
        modifier = Modifier.background(Color.Green)
    )
    Icon(
        Icons.Default.Check,
        null,
        Modifier
            .fillMaxHeight()
            .aspectRatio(1f)
    )
}