Backup options when LVM is used as storage (Debian-13.6 + Incus)

Hi team,
I am using Incus as my router os where pfSense and 2 LXCs are hosted. As it is a small machime N3350 CPU with 8GB DDR3 RAM, I wanted to keep a backup option ready so I can restore it in case of something goes wrong.

I tried clonezilla and rescuezilla but it failed to restore the Debian+Incus due to LVM as storage. Also tried R-Drive bootable solution but that too failed.
I am new to this LVM thing, any other solution to backup and restore the full OS with the Incus+VMs?

Note: I am already using export feature which is best but OS+Incus setup takes a lot of time due to my specific setup.

Thank you