A One UI 2.0 beta may have just spoiled Samsung's big next-gen display spec reveal. The leaker Ice Universe has reported that a user has found references to a 120 hertz (Hz) display setting in this version of the OS. This feature, called Best Display in the ROM, could be destined for the Galaxy S11 at the earliest.
https://www.notebookcheck.net/It-looks-like-Samsung-has-a-120Hz-display-in-the-works.443705.0.html