RHEL 10 must not have the "nfs-utils" package installed.
The "nfs-utils" package provides a daemon for the kernel Network File System (NFS) server and related tools. This package also contains the "showmount" program. The "showmount" program queries the mount daemon on a remote host for information about the NFS server on the remote host. For example, "showmount" can display the clients that are mounted on that host.
How this relates to the STIG checklist: STIG vs SCAP benchmark.