When I first switched to osx many years ago, this was a pretty jarring change. I was used to alt+tab switching between all windows, and had muscle memory tied to that.
Today, however, I couldn't imagine going back. Having separate toggles for switching apps vs. switching app windows is so much faster and useful - once you get used to it. But it does take retraining muscle memory.
What I don't understand is the author of this article making statements like this that reveal they have not put in any effort to learn a whole new OS. Imagine if I switched to KDE and soon wrote an article bashing KDE because I just couldn't figure out how to do basic things. Some effort is necessary to see what an OS offers, and this author clearly hasn't done it.
macOS has no customizability, claiming that this makes it more "intuitive" and you don't need "effort to learn" it.
If you need to spend "effort to learn" anyway, you might as well just go with something like KDE, where on top of having learnt the environment, you can now also customize it.
Today, however, I couldn't imagine going back. Having separate toggles for switching apps vs. switching app windows is so much faster and useful - once you get used to it. But it does take retraining muscle memory.