The ending of 'Overlord' is quite complex. In the end, Ainz Ooal Gown continues to rule over Nazarick and expand his influence in the new world. Many of the characters' fates are sealed according to his will. For example, some of the kingdoms are subjugated, and the power balance in the world is greatly shifted towards Nazarick.
The ending of the Overlord light novel is quite complex. In the end, Ainz Ooal Gown, the main character, has pretty much established his rule over the new world. His guild, Nazarick, stands as a dominant force. Many of the original inhabitants of the world have either submitted to his rule or been dealt with in various ways. There are also developments regarding the other characters in his guild and the relationships they form with the new world's inhabitants.
The ending of the Overlord light novel shows that Ainz Ooal Gown remains as the supreme ruler in the new world. He has achieved a great deal in terms of his goals for Nazarick. He has made various political maneuvers and has also faced some challenges along the way. For example, dealing with different races and their own interests. Overall, it's a conclusion that emphasizes his dominance in the new world.
The ending of the Overlord light novel is a mixed bag. It has its moments, but it doesn't please everyone. Different readers have different opinions based on their interpretation of the story and their attachment to the characters.
It ends at a specific chapter, but I can't recall exactly. You might want to check some manga forums or dedicated Overlord fan sites for the precise details.
The light novel that serves as the basis for Overlord Season 4 is the ongoing series by Kugane Maruyama. It has a rich and complex storyline that the anime adaptation tries to capture faithfully.