More Information can be found at https://www.redhat.com/en/blog/hot-presses-red-hat-enterprise-linux-9
If you encounter an error similar to this
% /usr/local/ansys_inc/v221/fluent/fluent22.1.0/launcher/bin/../lnamd64/launcher1: error while loading shared libraries: libnsl.so.1: cannot open shared object file: No such file or director
You have to install the libnsl library as libnsl.so.1 is not installed in Red Hat Linux release 8 be default.
% dnf install libnsl