AppViewModel.kt

class AppViewModel(
    ...
): BaseViewModel() {

    private val _pendingNavigationRoutes = Channel<List<String>>(
        capacity = 1,
        onBufferOverflow = BufferOverflow.DROP_LATEST
    )

    fun tryOpenScreenChain(routes: List<String>) {
        if (routes.isNotEmpty()) {
            viewModelScope.launch {
                _pendingNavigationRoutes.send(routes)
            }
        }
    }

    fun getNavigationPendingRoutes(): Flow<List<String>> {
        return _pendingNavigationRoutes.receiveAsFlow()
    }
    ...
}