The biggest culprit for gout is definitely carbs (sugar) and dehydration in my opinion and the carnivore diet and/or keto pretty much takes care of that, it eliminates the carbs and meat in my experience makes you drink a lot of water.
It is also a lot easier to maintain your weight (also very important in the gout equation) on carnivore, I find it really hard to over eat, you hit satiety fast and I find that there is a lot less noise in the hunger signals. My stomach now days only makes itself reminded when I truly need energy, no "fake" cravings.
My mental state also seem clearer, I find fat to be a smoother source of energy then carbs. Fat is a slow stable burn while carbs is a violent explosive burn, which is cool every now and then but you pay a price for it.