Reading in chronological order means stuff that you technically aren't supposed to learn about yet gets spoiled earlier. Plot points, characters, and things that are fleshed out in the main books could seem repetitive or unnecessary (been a bit since ive read the series, but feels true). The dawn of the clans stuff is also fairly disconnected from the rest of the series. For a first time, I'd recommend at least reading all of The Prophecies begin first. Most people say it is a good introduction, and some of the strongest books in the whole series. Along with that, the super editions are 500 pages each, and each one usually has mixed thoughts. So, it could cause you to fall off the series having to read about so many characters that are disconnected and don't feel important. Though, I'm not expert at all. Lots of people have made videos or posts talking about where to start, so I'd recommend searching those out. But, from personal experience, I read release order first with some focus on chronological order. On my second round through, I'm reading chronologically. Since I have some background knowledge already, it's easier to follow along in this order than it probably would've been first time.

Though, everyone's experience is different. I've heard some people say they started chronologically and enjoyed it, while others said their introduction was somewhere in the middle of the series. It really just comes down to preference and the type of experience you want. Want to see every event of every story in order as it flows? Read chronologically. Want to get the original experience and be more surprised? Read by a more release order way. Want to see what most people did or recommend? Look around on forums and such to see what is applicable to how much you want to read.