Man pages matching name credentials in section 7:

credentials.7.en	debian 10 / manpages
credentials.7.ja	debian 10 / manpages-ja
credentials.7.en	debian 11 / manpages
credentials.7.ja	debian 11 / manpages-ja
credentials.7.en	debian 12 / manpages
credentials.7.de	debian 12 / manpages-de
credentials.7.fr	debian 12 / manpages-fr
credentials.7.ja	debian 12 / manpages-ja