NAT router with 2 interfaces, how to do with firewalld and Centos 9 Stream

Our Neighbors CentOS
5 
sudo firewall-cmd --permanent --new-policy=internal-external
sudo firewall-cmd --permanent --policy=internal-external --set-target=ACCEPT
sudo firewall-cmd --permanent --policy=internal-external --add-masquerade
sudo firewall-cmd --permanent --policy=internal-external --add-ingress-zone=internal
sudo firewall-cmd --permanent --policy=internal-external --add-egress-zone=external
sudo firewall-cmd --reload

Policy Objects: Introduction | firewalld

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