I've been playing one of the forum's dynasty challenges and didn't even notice the fridge bug, because:
(1) Produce never spoils, so I never put it in the fridge. I guess simmers want produce in the fridge for cooking, but using fresh produce doesn't change the resulting quality of the meal.
So all my produce goes into a storage chest, unless my sim is preparing Ambrosia.
(2) My parent sims often hire vegetarian caterers and start a club meeting with Cooking as a club activity.
The Baker's Cousin Display Case acts like a fridge and lets me drag meals prepared by non-household sims directly into the case (no need to direct my sims to "Put away").
Plus, toddlers can grab single servings from that case. Recently, the only thing I place in the fridge is medicine, haha.
So, I should probably not be posting here about not having experienced the storage bug in my challenge save.
Usually, right after I do, I get hit by the bug...