What do you want to achieve? In case of Desaster you would need a working PBS to access your data. PBS also doesn't support cloud storages like S3.
For this reason I would never use it for backing up my notebook or even the PVE hosts.
Instead I use restic for my notebook, PVE hosts and large bulk data ( on my NAS VM). Restic backups needs just the Binary ( from which I have a copy on all in my backup storages with it's backups just in case), deduplicates like PBS and support every cloud storage supported by rclone.
Of course you could also use any other suitable backup tool e.g. Duplikati, rsync, rsnaspshot, borg or whatever you prefer.
Don't get me wrong: PBS is great Software and nothing beats it for VM and lxc backups, I would never use restic for doing my vm backups
You should also be aware that PBS doesn't support things like application-aware backup of SQL servers the way Veeam does. You could still reduce your Veeam costs by switching all your vm backups to PBS and just buy enough licenses for Veaam to cover the veeam agents you need inside your machines with applications who would need application-aware backups.
Use the right Tool for the right job
