Man pages matching name ssh_config in section 5:

ssh_config.5.en	debian 10 / openssh-client
ssh_config.5.de	debian 11 / manpages-de
ssh_config.5.en	debian 11 / openssh-client
ssh_config.5.de	debian 12 / manpages-de
ssh_config.5.uk	debian 12 / manpages-uk
ssh_config.5.en	debian 12 / openssh-client
ssh_config.5.de	debian 13 / manpages-de
ssh_config.5.fr	debian 13 / manpages-fr
ssh_config.5.uk	debian 13 / manpages-uk
ssh_config.5.en	debian 13 / openssh-client