One reason that I used frequently is custom group stories, for example a friend group can have their own story where everyone can post/look at. They used to be

One reason that I used frequently is custom group stories, for example a friend group can have their own story where everyone can post/look at. They used to be grouped in with user stories, but now are in the "discover" feed buried within the sponsored content and are extremely difficult to find easily. So much so that a few that I am a part of are almost never used anymore.