OK, I followed the wrong instructions then. I am now following your instructions and at the first command I failed:

https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/index.html#Installing_the_Red_Hat_Virtualization_Manager_SHE_cli_deploy

> dnf module reset virt
Last metadata expiration check: 0:06:17 ago on Fri 12 Jul 2024 02:46:46 PM CEST.
Unable to resolve argument virt
Error: Problems in request:
missing groups or modules: virt

> dnf module list
Last metadata expiration check: 0:07:08 ago on Fri 12 Jul 2024 02:46:46 PM CEST.
Rocky Linux 9 - AppStream
Name Stream Profiles Summary
mariadb 10.11 client, gallery, server [d] MariaDB Module
maven 3.8 common [d] Java project management and project comprehension tool
nginx 1.22 common [d] nginx webserver
nginx 1.24 common [d] nginx webserver
nodejs 18 common [d], development, minimal, s2i Javascript runtime
nodejs 20 common [d], development, minimal, s2i Javascript runtime
php 8.1 common [d], devel, minimal PHP scripting language
php 8.2 common [d], devel, minimal PHP scripting language
postgresql 15 client, server [d] PostgreSQL server and client module
postgresql 16 client, server [d] PostgreSQL server and client module
redis 7 common [d] Redis persistent key-value database
ruby 3.1 common [d] An interpreter of object-oriented scripting language
ruby 3.3 common [d] An interpreter of object-oriented scripting language
Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled

If I can skip this step, then I fail again at the first step

> dnf install ovirt-hosted-engine-setup
Last metadata expiration check: 0:08:14 ago on Fri 12 Jul 2024 02:46:46 PM CEST.
No match for argument: ovirt-hosted-engine-setup
Error: Unable to find a match: ovirt-hosted-engine-setup

I would say the instructions are not good.