Backup PVE host system with LVM snapshot?

Hello,
first I'd like to thank Proxmox team for this software product.

My homelab server currently is at beginner-level - single node, single NVMe with LVM-over-LUKS Proxmox host.
Without disk redundancy goal is to schedule automatic backups for all relevant components:
- VMs via PVE backup job
- PVE host configuration via this routine
- PVE host root filesystem via LVM snapshots

Snapshots don't protect against disk failures, but focus here is on recovery/revert in case of boot...

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