Man pages matching name mount.nfs in section 8:

mount.nfs.8.en	debian 10 / nfs-common
mount.nfs.8.fr	debian 11 / manpages-fr
mount.nfs.8.en	debian 11 / nfs-common
mount.nfs.8.fr	debian 12 / manpages-fr
mount.nfs.8.en	debian 12 / nfs-common