They are not variations on the same thing
Saadiyat's cultural district puts four very different institutions within walking distance, and people book them as if they were interchangeable.
The Louvre Abu Dhabi is a chronological world museum: one timeline, objects from every civilisation placed side by side rather than separated by region. Jean Nouvel's perforated dome is half the experience and the reason to be there in daylight. Two to three hours, and the express guided tour exists because the collection is easy to wander aimlessly.
The Zayed National Museum is about the UAE specifically — the founding, the falconry, the pearl trade, the making of a country from seven emirates. It is the one that explains the place you are standing in, and it is wasted if you rush it after something else.
The Natural History Museum is deep time: meteorites, fossils, the geology of Arabia. It is the one children reliably like.
teamLab Phenomena is not a museum. It is a large immersive digital artwork you walk through, and it is either the highlight of the trip or completely not your thing.
