User Configuration > Administrative Templates > Microsoft Word 2016 > Miscellaneous
User
HKCU\software\policies\microsoft\office\16.0\word\options
This policy allows you to hide the list of recently used fonts found under Home tab | Font. If you enable this policy setting, the list of recently used fonts will not be shown. If you disable or do not configure this policy setting, the list of recently used fonts will be shown.