Man pages matching name pod::elemental::flat in section 3pm:

Pod::Elemental::Flat.3pm.en	debian 10 / libpod-elemental-perl
Pod::Elemental::Flat.3pm.en	debian 11 / libpod-elemental-perl
Pod::Elemental::Flat.3pm.en	debian 12 / libpod-elemental-perl