Italophile
I see a few different Registry paths have been listed in this thread. The one you listed didn't work for me initially but I tried a few times and think I may have erred before hitting the right combination.
Code:
Computer\HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Word\Options
String Key name: NoFontMRUList
Value: 1
I'm thinking that perhaps when I first created the key, the name included a space after the NoFontMRUList
Then I also think, trying a few different formats for the key remained an issue. DWord didn't work for me but String Value did
I also found this path from a Youtube video - kudos to OnlineComputerTips
https://www.youtube.com/watch?v=ACVerhMHzJY