Man pages matching name x11::freedesktop::desktopentry in section 3pm:

X11::FreeDesktop::DesktopEntry.3pm.en	debian 10 / libx11-freedesktop-desktopentry-perl
X11::FreeDesktop::DesktopEntry.3pm.en	debian 11 / libx11-freedesktop-desktopentry-perl
X11::FreeDesktop::DesktopEntry.3pm.en	debian 12 / libx11-freedesktop-desktopentry-perl