Varied experience
My son is lactose intolerant and has flown bus class 20 times in last 5 years.
Confirmed low lactose meals show up 50% of the time - quality varies dramatically. Like the penguin he finds the fruit and appetizers that are main stream in the meal the most appetizing & digestible.
When he flies economy and the lactose meal is loaded (intl only) it is served before mainstream and is usually horrid.( I know as I swapped my J class seat for his economy seat on a YYZ - TLV & return this past May)