Man pages matching name setsid in section 1:

setsid.1.de	debian 10 / manpages-de
setsid.1.en	debian 10 / util-linux
setsid.1.de	debian 11 / manpages-de
setsid.1.es	debian 11 / manpages-es
setsid.1.fr	debian 11 / manpages-fr
setsid.1.en	debian 11 / util-linux
setsid.1.de	debian 12 / manpages-de
setsid.1.es	debian 12 / manpages-es
setsid.1.fr	debian 12 / manpages-fr
setsid.1.sr	debian 12 / manpages-sr
setsid.1.uk	debian 12 / manpages-uk
setsid.1.en	debian 12 / util-linux