Man pages matching name grub-mount in section 1:

grub-mount.1.en	debian 10 / grub-common
grub-mount.1.en	debian 11 / grub-common
grub-mount.1.de	debian 11 / manpages-de
grub-mount.1.nl	debian 11 / manpages-nl
grub-mount.1.en	debian 12 / grub-common
grub-mount.1.da	debian 12 / manpages-da
grub-mount.1.de	debian 12 / manpages-de
grub-mount.1.ja	debian 12 / manpages-ja
grub-mount.1.nb	debian 12 / manpages-nb
grub-mount.1.nl	debian 12 / manpages-nl
grub-mount.1.sr	debian 12 / manpages-sr
grub-mount.1.sv	debian 12 / manpages-sv
grub-mount.1.vi	debian 12 / manpages-vi