When you update PS, the fonts you marked as favorites are not marked anymore. Is there anyway to save\backup the list of fonts you marked as favorites?
It should happen automatically. You are given a choice whether to keep settings or not.
Migrate presets, actions, and settings
I know, I chose to save settings and ALL other settings were saved - only fonts marked favorites were not. Font marking is not listed in the link you gave.
Retrieving data ...