So, short story:
Was running HA on a RPi4 installed on a SSD - I updated to HA OS 10 which completely failed my setup (no idea why). It fails to recoignice the SSD card to can’t even start it up. I only took internal backups in HA (lesson learned) and thus got no backup stored externally.
Is it possible to retrieve the backup from my SSD somehow? I’m open for all suggestions or thoughts.
I assume you’re using a USB connected SSD.
So it’s likely you can access the content when connected to a different computer, even if it’s running Windows. If read ext4 has no native support, you could consider a small tool to do so, for example: