I believe no. As far as I understand RedHat already provides user space "iptables" utility which simply converts any input/output to/from nftables, so there is no kernel iptables in latest RedHat.
Many distro default to iptables-nft, RHEL 8 went further and is not providing iptables-legacy binary at all. RHEL 8 still has iptables in the kernel, I think to allow container sidecars to still work with iptables-legacy.
