Classic and whisker menu visible labels available screensavers..... I think they don't need the menu,I suggest to hide them from there and put a link to made me a pool-rekvest correcting the situation. https://github.com/xfce-mirror/xfce4-screensaver/pull/1/commits/2f24dbbf3fe091fecfeb55e97e932b718a2634e8
This indicates that your application menu is including the "Screensaver" category. Only screensaver applications and other tools that would list screensavers would normally include this category. You'll likely find it in /etc/xdg/menus/xfce-applications.menu or another menu file.