sysroot.mount failed

I was using Bazzite fine until today, when it suddenly dropped into Emergency mode. I'm not sure what I did to cause this, all was working fine. I can see from systemctl that sysroot.mount failed to load. And journalctl shows the info in the picture below. I'm not sure what caused this. Yesterday I switched on HDR, and also reinstall the Decky plugins. I wonder if they broke things somehow. Is it completely broken? Thanks in advance.