The challenge of updating InsydeH2O UEFI with Linux

Fun fact about me: I am the weirdo who always updates the UEFI even though it is not technically necessary. It just makes me feel better to know everything is up to date. Particularly because every update’s changelog always lists an impressive collection of security bug fixes. The problem is that my laptop does not support updating the UEFI from within Linux. Lenovo does not submit updates to LVFS…