`stateDescription` feature in SemanticsProperties() fails to read/describe updated state values

Expected behaviour:

• When user toggles on any component say a button in this case, then when the state is updated or changed automatically talk back should read/announce the updated state value.

Reproduce steps:

• Create a button BookmarkButton using compose.
• Set false as default state. Now customize the state to true programmatically.
• Based on the state will assign the custom read string to stateDescription param.
• Test with TalkBack (12.1) and observe it does not read out updated state description as expected.

Tested on devices: OnePlus 8 API 31, Emulator Pixel 4a API 31 and Pixel 4a API 32

@Composable
fun BookmarkButton(
    isBookmarked: Boolean,
    onClick: () -> Unit,
    modifier: Modifier = Modifier,
    contentAlpha: Float = ContentAlpha.high
) {
    var isChecked by remember { mutableStateOf(false) }
    CompositionLocalProvider(LocalContentAlpha provides contentAlpha) {
        IconToggleButton(
            checked = isChecked,
            onCheckedChange = { isChecked = !isChecked },
            modifier = modifier.semantics {
                this.stateDescription =
                    if (isChecked) "Yes added to book mark" else "Removed from bookmark"
            }
        ) {
            Icon(
                imageVector = if (isChecked) Icons.Filled.Bookmark else Icons.Filled.BookmarkBorder,
                contentDescription = null // handled by click label of parent
            )
        }
    }
}

Can this talkback feature when any state is updated be achieved using this approach or any alternate solution available for the same?