See: https://bugzilla.proxmox.com/show_bug.cgi?id=3662I guess I'm not aware, is the native ZFS-iSCSI unable to store TPM disks?
Discussion here: https://forum.proxmox.com/threads/cant-boot-vm-after-put-tpm-state-on-zfs-over-iscsi.103099/
TPM does not work over PVE's native ZFS over iSCSI implementation.