Man pages matching name fifo in section 7:

fifo.7.en	debian 10 / manpages
fifo.7.de	debian 10 / manpages-de
fifo.7.ja	debian 10 / manpages-ja
fifo.7.zh_CN	debian 10 / manpages-zh
fifo.7.zh_TW	debian 10 / manpages-zh
fifo.7.en	debian 11 / manpages
fifo.7.de	debian 11 / manpages-de
fifo.7.es	debian 11 / manpages-es
fifo.7.fr	debian 11 / manpages-fr
fifo.7.ja	debian 11 / manpages-ja
fifo.7.zh_CN	debian 11 / manpages-zh
fifo.7.zh_TW	debian 11 / manpages-zh
fifo.7.en	debian 12 / manpages
fifo.7.de	debian 12 / manpages-de
fifo.7.es	debian 12 / manpages-es
fifo.7.fr	debian 12 / manpages-fr
fifo.7.ja	debian 12 / manpages-ja
fifo.7.pt_BR	debian 12 / manpages-pt-br
fifo.7.ru	debian 12 / manpages-ru
fifo.7.zh_CN	debian 12 / manpages-zh
fifo.7.zh_TW	debian 12 / manpages-zh