My L560 is seemingly supported through fwup -- provided the existing firmware is not too old: fwupdmgr commands fail with: Not compatible with firmware vers

My L560 is seemingly supported through fwup -- provided the existing firmware is not too old: fwupdmgr commands fail with: Not compatible with firmware version 0.1.22, requires >= 0.1.42 And indeed history on fwupd.org goes back only to 0.1.43: https://fwupd.org/lvfs/devices/com.lenovo.ThinkPadN1HET.firmware https://fwupd.org/lvfs/devices/com.lenovo.ThinkPadN1HET.firm... Leaving a bootable ISO as apparently the only option. The snag being that the documentation refers only to Windows, and describes various Windows-UEFI interactions. https://download.lenovo.com/pccbbs/mobiles/n1hur35w.txt https://download.lenovo.com/pccbbs/mobiles/n1hur35w.txt So, the $1500 question is, could there be some hidden risk of bricking the laptop, at least for Linux installations?