There ARE ways to fix that unpleasant sensory problem but who knows if there are.... consequences to those ways. Better safe than sorry sticking with goodberries. Who knew a D&D goodberry can fill you up? CERTAINLY CAN"T SAY THE SAME FOR BG3 GOODBERRIES.
I can only conclude the second best way that Greygold can help their companions sustain themselves comfortably enough while stuck in Avernus is D&D goodberries (and if I have to cook up a half-hazard story-wise theory for why we only had not-as-goodberries before then, SO BE IT).