I'm not 100% sure, but looks like we really have.

With package " zabbix-apache-conf-scl" provide a file "/etc/httpd/conf.d/zabbix.conf"
But Apache may timeout also, additionally to php-fpm itself.
"ProxyTimeout" is what defines that and it's also 60 seconds by default.
https://httpd.apache.org/docs/2.4/mod/mod_proxy.html#proxytimeout

For Nginx (package "zabbix-nginx-conf-scl") we set in file "/etc/opt/rh/rh-nginx116/nginx/conf.d":

                fastcgi_connect_timeout         60;
                fastcgi_send_timeout            180;
                fastcgi_read_timeout            180;

so we have to do something like that for Apache as well.