@manw3bttcks, it’s not for locating, then user-installing them. However, it is designed to update (and remove) them. You may find that the context, that is cited by the undermentioned, explains what you want to know:
Unfortunately, this remains somewhat true for Discover, for it appears to utilise dnf4’s database even on dnf5-based OSes:
However, per bugs.kde.org/show_bug.cgi?id=480525#c5, it shouldn’t cause many problems, except that installation location and some dependency information may be inaccessible via some methods.