You barely noticed a graphic novel that actually tries to explain something about this series, and honestly, that tracks. The Dungeon Crawler Carl: Crocodile graphic novel expands the world in ways the books have been too busy exploding things to bother with, and you probably scrolled past the announcement like it was a floor trap you didn't see. If you actually paid attention to Book Six Review: The Eye of the Bedlam Bride Barely Worth Your Time, you know the sixth book had enough plot holes to park a crawler train through. This graphic novel might actually plug a few of them, but you would have to read it first.
Woman's World reported that the graphic novel fleshes out the lore of the dungeon world. That is the whole story. No page count, no release date that matters, no mention of Princess Donut or Mongo or Quasar, just a promise of more world-building in a format that requires you to look at pictures. The Audiobook Narrator Explains Why Princess Donut Is More Than a Joke article made the same point about Donut being deeper than her punchlines, so maybe the graphic novel will do the same for the crocodile. Maybe it will explain why the dungeon has a crocodile at all, or what it wants, or why anyone should care. That is the kind of detail the main books skip because they are too busy killing things and cracking jokes.
Here is the practical takeaway for you, the person who calls yourself a fan but has not preordered anything since book three. This graphic novel is the test. If you buy it, you tell Matt Dinniman and the publisher that you want lore, not just explosions. If you ignore it, you get more books where the plot is just a series of boss fights strung together by cat jokes. The Jeff Hays to Voice Princess Donut in Show After Fan Demand article proves the fans can get what they want if they make noise, so make noise for this or shut up about not understanding the dungeon. The crocodile graphic novel is out there, waiting for you to notice it. Do not make it wait long.