Did you end up figuring out a solution? Nvidia does make things more difficult than they should. If you haven’t already, and you comfortable installing from the AUR, Timeshift is a great snapshot/recovery tool with a gui option. You can pair it with timeshift-autosnap, which will automatically create Timeshift snapshots before you upgrade any package with pacman. If you ever bork your system and can’t boot into your system, just throw in a live USB, recover from your snapshot, and be back up and running in minutes.