Man pages matching name boost::geometry::utils in section 3pm:

Boost::Geometry::Utils.3pm.en	debian 10 / libboost-geometry-utils-perl
Boost::Geometry::Utils.3pm.en	debian 11 / libboost-geometry-utils-perl
Boost::Geometry::Utils.3pm.en	debian 12 / libboost-geometry-utils-perl