Man pages matching name config::mvp::reader::ini in section 3pm:

Config::MVP::Reader::INI.3pm.en	debian 10 / libconfig-mvp-reader-ini-perl
Config::MVP::Reader::INI.3pm.en	debian 11 / libconfig-mvp-reader-ini-perl
Config::MVP::Reader::INI.3pm.en	debian 12 / libconfig-mvp-reader-ini-perl