encrypted root

I am going to install PVE at my office. For the security policy of my office, I have to encrypt all disks. I have experience of PVE installation at my homelab without encryption, FYI. At first, I thought I can utilize zfs encryption but I am hesitating after I have read this...

I have hit yet another puzzle. If I install upon Debian 12 prepared with encrypted root, what would happen to the encryption after Proxmox formats one of the drives? When I updated from Debian 11, nothing changed, and, of course, I didn't format anything new. But if Proxmox formats a disk, I...