Man pages matching name ustat in section 2:

ustat.2.de	debian 10 / manpages-de-dev
ustat.2.en	debian 10 / manpages-dev
ustat.2.es	debian 10 / manpages-es
ustat.2.it	debian 10 / manpages-it
ustat.2.ja	debian 10 / manpages-ja-dev
ustat.2.pt	debian 10 / manpages-pt-dev
ustat.2.de	debian 11 / manpages-de-dev
ustat.2.en	debian 11 / manpages-dev
ustat.2.es	debian 11 / manpages-es-dev
ustat.2.fr	debian 11 / manpages-fr-dev
ustat.2.it	debian 11 / manpages-it-dev
ustat.2.ja	debian 11 / manpages-ja-dev
ustat.2.nl	debian 11 / manpages-nl-dev
ustat.2.pt	debian 11 / manpages-pt-dev
ustat.2.de	debian 12 / manpages-de-dev
ustat.2.en	debian 12 / manpages-dev
ustat.2.fr	debian 12 / manpages-fr-dev
ustat.2.it	debian 12 / manpages-it-dev
ustat.2.ja	debian 12 / manpages-ja-dev
ustat.2.nl	debian 12 / manpages-nl-dev
ustat.2.ru	debian 12 / manpages-ru-dev