Man pages matching name test::portability::files in section 3pm:

Test::Portability::Files.3pm.en	debian 10 / libtest-portability-files-perl
Test::Portability::Files.3pm.en	debian 11 / libtest-portability-files-perl
Test::Portability::Files.3pm.en	debian 12 / libtest-portability-files-perl