I tried several ways to upgrade a node and the hosted-engine and it didn´t work. The upgrade of a standard installation of Rocky 8.x to 9 works fine, but when you add the Ovirt/CentOS repositories, dnf starts to throw a bunch of conflicts and it doesn´t work anymore, and you have just bricked your host.

Reinstall a node is easy. The problem is reinstall a node with GlusterFS hyper converged. 

For the hosted-engine, the only option would be reinstall it and restore a backup, right?