The Highscores is a client window released with the Summer Update 2020. It shows the top players in 13 different categories, by Game World or for all Game Worlds combined, and can be filtered by all Vocations. It's an in-client version of the same feature that has been available on the Official Website for many years.
The client highscores update every 30 minutes, whereas the website highscores only once every hour (it used to only update once per day until the client feature was released).
The following categories can be checked on the highscores: