Candida doesn’t go virulent(fungal) until there is not enough good flora to inhibit its virulence. Whether candida goes virulent or not depends on the level of fungal candida in the gut. If enough fungal candida is present then it will go virulent if you try to starve it(no food at all). Eating a little sugar just helps to keep it in its yeast form. If someone starts developing fungal candida then its probably not a good idea to entirely avoid carbs. It does seem like fungal candida is more designed for the breakdown of protein and fats, whereas the yeast form is more designed for simple carbs/sugars. Either form can cause issues when it is out of control.
When I had a mild yeast infection fruits and simple sugars seem to cause flare ups/bloating more than any other foods. Seems like candida “yeast” thrives on natural fructose. The goal is to try to limit candida’s metabolism by eating complex low GI Carbs.