It depends on the book. Some books have a Compendium feature as well as an adventure. You can find the Compendium parts in the adventure. There's no consistent "read-it-through-as-you-would-a-dpf" solution, though. For instance, you can read through the text parts of Candlekeep Mysteries, , the monsters are linked but not in a continuous-read fashion, and the adventures are in the module or addons. Candlekeep does introduce adventure intros though, which is new. Each book is a little different, as it is an evolving process. The earliest module books have no compendium tie in. One way or another though, you have every bit of text in the physical book.