Interesting, I have the "reverse" problem. Mostly I read older books, random books and I've noticed a pattern in less known and maybe less skilled authors. Sometimes, especially in the books from the 1970s, the story just sort of stops. You're running out of pages, no resolution in sight and then the book stops. I mean there is a ending, but it feels short, half measured and not in tune with the rest of the book in some sense.

Maybe this was just the writing style at the time. 200 pages of storytelling, world building, details and plot development and then 20 pages to resolve and finish up. Frequently it doesn't even feel rushed, it is just less clear cut ending than newer books.

Most recent example I came across is Kramer vs Kramer. It's a short book overall, but the main plot is no more than 10% of the book and the resolution is two or three pages and then it just stops.