No Boot Partition On M2 Drive After Bios Update - Recovery Fails: No Linux Partition Found

Updated my Bios and now I cant boot 4.1 on my m2 drive (4 still boots on ssd but doesn’t launch VMs). Recovery from USB image fails after accepting the luks PW, with no linux partition found.
Not sure why/how a bios flash is doing this but perhaps secure boot related.
Any chance I can still restore grub despite recovery fail?