Man pages matching name machine-id in section 5:

machine-id.5.de	debian 10 / manpages-de
machine-id.5.zh_CN	debian 10 / manpages-zh
machine-id.5.zh_TW	debian 10 / manpages-zh
machine-id.5.en	debian 10 / systemd
machine-id.5.de	debian 11 / manpages-de
machine-id.5.zh_CN	debian 11 / manpages-zh
machine-id.5.zh_TW	debian 11 / manpages-zh
machine-id.5.en	debian 11 / systemd
machine-id.5.de	debian 12 / manpages-de
machine-id.5.zh_CN	debian 12 / manpages-zh
machine-id.5.zh_TW	debian 12 / manpages-zh
machine-id.5.en	debian 12 / systemd