https://gist.github.com/pl0xdev/f6cc882a94f537c4e20e99e0357bc98c

The No Hunger option seems bugged right now, bar is still visible & functions like vanilla.

for legacy reasons no_hunger is a part of taggable_players.
disable taggable_players
or go to .minecraft/config/fabrication/taggable_players.ini and remove no_hunger from it