Man pages matching name fstatfs64 in section 2:

fstatfs64.2.en	debian 10 / manpages-dev
fstatfs64.2.ja	debian 10 / manpages-ja-dev
fstatfs64.2.en	debian 11 / manpages-dev
fstatfs64.2.ja	debian 11 / manpages-ja-dev
fstatfs64.2.en	debian 12 / manpages-dev
fstatfs64.2.ja	debian 12 / manpages-ja-dev