Man pages matching name cgi::application::plugin::authentication::driver::authen::simple in section 3pm:

CGI::Application::Plugin::Authentication::Driver::Authen::Simple.3pm.en	debian 10 / libcgi-application-plugin-authentication-perl
CGI::Application::Plugin::Authentication::Driver::Authen::Simple.3pm.en	debian 12 / libcgi-application-plugin-authentication-perl