Man pages matching name lsdev in section 8:

lsdev.8.ja	debian 10 / manpages-ja
lsdev.8.en	debian 10 / procinfo
lsdev.8.ja	debian 11 / manpages-ja
lsdev.8.en	debian 11 / procinfo
lsdev.8.ja	debian 12 / manpages-ja
lsdev.8.en	debian 12 / procinfo