Hello @JusGellin and Happy New Year.
I want to offer an idea that you might find helpful in understanding.
Years ago, I looked at the idea of backup'ing as it relates ONLY to this forum distro's offerings.
As you and many others KNOW, I only run distros where I boot the forum developer's distro offering via their presented ISO/IMG file.
A forum distro comprises a combination of a never changing ISO file and any persistence (save-session) file-folder that accompanies. THAT'S ALL THERE IS! ... Simple! ![Exclamation :!:](./images/smilies/icon_exclaim.gif)
As such, as long as I have a distro's ISO file and the sessions that pertain to it, I have a complete running distro. This IS A FRUGAL operation!!! So, I want to emphasize that this forum's distros make this possible with how the distros are designed and presented on the forum. Again, they offer us a VERY SIMPLE design. ISO+Session is a running frugal system.
OK, understanding, as we do, this fact(s), the ONLY new/changing things users do are SAVED in the Session files that the distro's operation produces. The beauty now is that the ONLY thing that needs to be saved, are the SESSION files. The ISO file never changes, but any system change done while using the distro the session is in constant change, per se. So, the ONLY thing I backup for ALL of the distros that are run on a given PC, is its Session folder on its Persistence partition. I have no need to backup a PUP forum distro. I only need to backup the Persistence partition.
This is why I do NOT do individual distro system backups for forum distros. The effort to do so and the effort to maintain them, much less the efforts in backup technologies to use, I DONT MAKE for any system on the forum.
The developers of this many-year productions of forum distros have made this kind of operations simple to understand and to maintain.
My 2 backup requirements per PC is only addressing:
systems user data which is separate from
Persistence's Session-folder contents
There are many many backup solutions available from various offerings over the past 40 years with various many/extensions to keep the backups contained within.
So, my operation is simple to reproduce any forum distro or all if necessary.
If I can offer some things to consider, consider what your backup objective is, what backup format and extensions are universal (as backup disappear, change how they do it, or lose developer support from time to time); thus universal understandable backup formats is an important decision to consider...NOT the program's name or where it comes from. So using any backup that does NOT use ANY propriety developer efforts are the best, for me, to build into my selections of what I use and how I plan backup duties.
I offer this as information that might help you as you continue to process how to build a process of recovery you are aiming for.
Its not the backup that I plan for, its the recovery!
This post is merely a FYI