A workaround would be to install the "Web Client" service in a Windows server pointing to the vCenter lookup service on the Suse vCenter. Just tried and it works!

It won't work with the C# windows client, tough. But after using the web client for a while you get use to it.

Install Veeam on a separate physical server. During the backup window Veeam consumes a lot of resources and can became a "bad neighbor" if it's installed as a VM, also it really doesn't make much sense living within the enviroment it wants to protect.

You can keep the backups on the Veeam server drives, and if possible make a copy of the backups to a remote NAS, there are nice and affordable NAS boxes available.