Dumbest plot and ending of anime ever?

Controversial opinion but i'd say Kakegurui, it just, ended.
Like all the buildup to season 2, and on the last episode, it just ends, nothing special, as if it were a regular episode in the middle of the show. You're left there waiting for the next episode but find out that literally was the end of the season.
It was a great show still but damn that disappointed me.