I restored from a timeshift snapshot on my btrfs drive. When it rebooted I got the grub rescue prompt. I was able to load into a snapshot using “set prefix” and “insmod normal”.
I was able to restore grub so it boots normally, but it’s on the latest snapshot and if I open Timeshift to go to another, all backups are missing and timeshift says I’m not on the root of the drive.
I’m not sure what next steps I need to take to get back to the right snapshot.