Linux completely frozen

My linux system just froze and I can't even switch to tty. I can't force reboot it because it is moving a partiton (a HDD with no system files) with really important data which I can't afford to lose. I even tried blindly switching to tty and writing commands but that does not work. SSH is not configures but CUPS is,tried to use CUPS in order to see if the system can process something but no luck. What can I do? I use nobara 36 with KDE Plasma,no separate boot device. No backups either,guess I gonna do them after I fix this.