I get a red error in CLI when restarting freepbx saying firewall needs to be installed and enabled. I don’t think it used to be required. At some point I think it was required to be installed but not enabled. Now apparently it needs to be enabled.
I am of the opinion that linking these two modules is a bad idea. I am personally not a fan of the firewall module. It is too opinionated imo, causes more problems than it prevents in my experience, harder to work with than just setting up iptables/firewalld myself. I would prefer it to be the way it was before, where it did not need to be enabled.