Man pages matching name poe::filter::irc::compat in section 3pm:

POE::Filter::IRC::Compat.3pm.en	debian 10 / libpoe-component-irc-perl
POE::Filter::IRC::Compat.3pm.en	debian 11 / libpoe-component-irc-perl
POE::Filter::IRC::Compat.3pm.en	debian 12 / libpoe-component-irc-perl