RE: https://social.treehouse.systems/@PolyWolf/116325652026222556 booted into Arch Installer USB, drives showed up + mounted just fine, no issues found besides some missing EFI variables, rebooted into firmware interface and yep sure enough it's back working now. phew! in some ways this is more scary tho, means it really is my BIOS crapping out, will look to purchase a new computer once I land a new job yep