The Beginning After the End manga has indeed finished. It provided a satisfying conclusion to the characters' arcs and the overall narrative. Maybe there'll be spin-offs or related projects in the future, but for now, the main story is complete.
Douluo Continent Chapter 97 was the 97th chapter of the Douluo Continent novel series. It was not the beginning or the end of the entire book. There were a total of three novels in the Douluo Continent series: Douluo Continent, Douluo Continent II: Divine Soul Douluo, and Douluo Continent III: Legend of the Dragon King.
I'm not sure specifically as I haven't read it. But it might be a story about new beginnings that follow an end, perhaps in a fictional world with its own set of characters, conflicts and resolutions.
It's a story full of magic, adventure and character growth. The main character experiences a new start in a different world and has to face various challenges and make choices along the way.