Man pages matching name bootparams in section 5:

bootparams.5.en	debian 10 / bootparamd
bootparams.5.ja	debian 10 / manpages-ja
bootparams.5.en	debian 11 / bootparamd
bootparams.5.ja	debian 11 / manpages-ja
bootparams.5.en	debian 12 / bootparamd
bootparams.5.ja	debian 12 / manpages-ja