Man pages matching name sftp in section 1:

sftp.1.en	debian 10 / openssh-client
sftp.1.de	debian 11 / manpages-de
sftp.1.en	debian 11 / openssh-client
sftp.1.de	debian 12 / manpages-de
sftp.1.uk	debian 12 / manpages-uk
sftp.1.en	debian 12 / openssh-client