Man pages matching name troff in section 1:

troff.1.en	debian 10 / groff-base
troff.1.ja	debian 10 / manpages-ja
troff.1.zh_CN	debian 10 / manpages-zh
troff.1.zh_TW	debian 10 / manpages-zh
troff.1.en	debian 11 / groff-base
troff.1.ja	debian 11 / manpages-ja
troff.1.zh_CN	debian 11 / manpages-zh
troff.1.zh_TW	debian 11 / manpages-zh
troff.1.en	debian 12 / groff-base
troff.1.ja	debian 12 / manpages-ja
troff.1.zh_CN	debian 12 / manpages-zh
troff.1.zh_TW	debian 12 / manpages-zh