Man pages matching name catalyst::manual::deployment::apache::fastcgi in section 3pm:

Catalyst::Manual::Deployment::Apache::FastCGI.3pm.en	debian 10 / libcatalyst-manual-perl
Catalyst::Manual::Deployment::Apache::FastCGI.3pm.en	debian 11 / libcatalyst-manual-perl
Catalyst::Manual::Deployment::Apache::FastCGI.3pm.en	debian 12 / libcatalyst-manual-perl