Man pages matching name pppd in section 8:

pppd.8.ja	debian 10 / manpages-ja
pppd.8.pl	debian 10 / manpages-pl
pppd.8.zh_CN	debian 10 / manpages-zh
pppd.8.zh_TW	debian 10 / manpages-zh
pppd.8.en	debian 10 / ppp
pppd.8.ja	debian 11 / manpages-ja
pppd.8.zh_CN	debian 11 / manpages-zh
pppd.8.zh_TW	debian 11 / manpages-zh
pppd.8.en	debian 11 / ppp
pppd.8.ja	debian 12 / manpages-ja
pppd.8.zh_CN	debian 12 / manpages-zh
pppd.8.zh_TW	debian 12 / manpages-zh
pppd.8.en	debian 12 / ppp