Man pages matching name list::utilsby::xs in section 3pm:

List::UtilsBy::XS.3pm.en	debian 10 / liblist-utilsby-xs-perl
List::UtilsBy::XS.3pm.en	debian 11 / liblist-utilsby-xs-perl
List::UtilsBy::XS.3pm.en	debian 12 / liblist-utilsby-xs-perl