That's all correct, but in common usage 'Redux' almost always means 'React-Redux', i.e. the integration of Redux into a React app. And given the OP, that should

That's all correct, but in common usage 'Redux' almost always means 'React-Redux', i.e. the integration of Redux into a React app. And given the OP, that should be clear in the context of my comment. And since we are talking about React-Redux, it is correct to say it is complex–as can plainly be seen in the OP.