Why is Star Wars not in order?

Could you elaborate on the confusion surrounding the order of the Star Wars saga? Is it regarding the release order, the chronological order of events, or perhaps the episodic structure? Some fans prefer the original trilogy's narrative flow, while others appreciate the prequel trilogy's exploration of Anakin Skywalker's fall to the dark side. And the sequel trilogy adds another layer of complexity to the timeline. So, why do you believe Star Wars isn't in order, and what order are you referring to?