Man pages matching name loader.conf in section 5:

loader.conf.5.en	debian 10 / systemd
loader.conf.5.de	debian 11 / manpages-de
loader.conf.5.en	debian 11 / systemd
loader.conf.5.de	debian 12 / manpages-de
loader.conf.5.en	debian 12 / systemd-boot