Man pages matching name ur::object::view::default::gtk2 in section 3pm:

UR::Object::View::Default::Gtk2.3pm.en	debian 10 / libur-perl
UR::Object::View::Default::Gtk2.3pm.en	debian 11 / libur-perl
UR::Object::View::Default::Gtk2.3pm.en	debian 12 / libur-perl