Man pages matching name module::install::extratests in section 3pm:

Module::Install::ExtraTests.3pm.en	debian 10 / libmodule-install-extratests-perl
Module::Install::ExtraTests.3pm.en	debian 11 / libmodule-install-extratests-perl
Module::Install::ExtraTests.3pm.en	debian 12 / libmodule-install-extratests-perl