2 disks in the same machine is not a backup whether the data is copied between them using RAID or rsync or anything else.
Sounds like for this machine, just use the two disks in RAID1, or a ZFS mirror, or something. And figure out something else for backups. Probably a cloud solution.
Also, RAID2 requires a minimum of 3 disks, and is rarely used.
Canadian official
Doug Ford
Lmao
I ran Lineage on my OnePlus 5 for a few years until I replaced it with a Pixel 8 last month. The first thing I did with it was install GrapheneOS. I have not had any issues so far.
Cyanogenmod became LineageOS. It can be run fully de-googled or with Gapps.
GrapheneOS is also worth looking at.
Both run on modern hardware and are super simple to install.
Do you have an earlier snapshot that you can roll back to? If not then this is a learning experience about how you should take a snapshot before doing any configuration changes/updates. And also maybe some automatic ones on a schedule (daily/weekly).
As far as recovering files, you could try the Windows recovery environment (or whatever they call it). Take a snapshot first, in case it makes things worse.
You could also try mounting the virtual disk to your host system. https://www.baeldung.com/linux/mount-qcow2-image
Or try booting the VM with a live boot environment of your favorite distro, similar to how you would do recovery from a dead physical machine.
Relevant XKCD