If your system language is set to German, the user interface is using the new terms "Benutzer:innen", "Autor:innen", "Künstler:innen", "Komponist:innen", etc. throughout the user interface, since macOS 12. There has been a flood of posts requesting a system setting, to allow us to be able to set the language of the user interface to a standard German orthography in the German Offizielle Apple Support Community, but I would not add to this. Any new thread on this topic will very likely be closed by the moderators with a polite comment (see: Gendern - Apple Community). It would be better to write directly to Apple with a feature request using the feedback form.