Man pages matching name app::info::lib::expat in section 3pm:

App::Info::Lib::Expat.3pm.en	debian 10 / libapp-info-perl
App::Info::Lib::Expat.3pm.en	debian 11 / libapp-info-perl
App::Info::Lib::Expat.3pm.en	debian 12 / libapp-info-perl