If another variable in ChangeNotifier is changed, will the Consumer's model be updated?

Question

If the following setIntVal is called and notifyListeners(); is executed, is the Text redrawn? intVal is changed but strVal is not.

Similarly, what happens when StateNotifier is used?

class DummyManager with ChangeNotifier {
  DummyManager();

  int intVal = 0;
  String strVal = "";

  void setIntVal(val) {
    intVal = val;
    notifyListeners();
  }
}

Consumer<DummyManager>(
    builder: (context, model, child) {
      return Text(model.strVal);
    },
)

Answer 1

Yes. By default, any change in a notifier rebuilds a consumer.

But you can optimize this, using select:
By changing your consumer to:

Consumer(
  builder: (context, ref, child) {
    final strVal = ref.watch(modelProvider.select((v) => v.strVal));
    return Text(strVal);
  },
)

Then your widget will rebuild only when that specific value changes.

Do note that the result is expected to be immutable. As such, avoid retuning lists