Yeah a lot of times the multi-ending ones don’t offer many unique experiences.
Though there was this one game I played that largely did, it was a Horror RPGmaker game called Red Haze, by far one of the more expansive multi-ending games (so much so that it’s actually not finished, there’s supposed to be 26, possibly 27 endings but only about 3/4 of them are there) the endings might be short or require a lot of steps, and some changes propagate into later playthroughs, some of the endings also require you to have done other endings for them to work.
It’s a very interesting concept but unfortunately not many games implement multi-ending in this way since it takes a lot more work to do.