I recently spent a lot of time looking into gout in Bearded Dragons and the risks and causes. Gout is caused by proteins being broken down into uric acid that is for whatever reason not cleared by the kidneys but instead builds up and crystalizes. This is a serious problem as those crystals do not break down, and from what I understand the process is irreversible once these crystals have been deposited.
Dubai Roaches (and perhaps all roaches?) can be doubly problematic because in addition to being higher in protein than most (all?) other feeders they also have the ability to store uric acid inside their bodies that they use for nutrition in times of starvation. It's important that they are fed low proteins diets so they are unable to do this. What "low protein" is, seems to be up for debate. DubaiRoaches.com where i buy my roaches
cites a Repashy article that recommends under 15%... but then feeds their roaches 17%.
This article cites a study on german cockroaches (sorry the actual study is behind a paywall) which gives a nice graph indicating that at 5% protein consumption these roaches no longer contain any free floating uric acid. The problem is that these roaches then suffer high mortality, and low growth rates so no supplier is willing to go that low.
I still feed a lot of Dubai, but i try to mix in other feeders as often as i can. I'm also careful about
hydration as dehydration makes it more difficult for the kidneys to process out uric acid. Hornworms have a very high moisture content and I like to give Beebz 1-2 a day. This seems to be more than is typically recommended but as he doesn't have any loose stools as a result i believe he is benefitting from the extra water.
It's also important to understand some Dragons can develop gout from a disease or genetic dysfunction of the kidneys that would not result in gout from a healthy Dragon consuming the same diet.
Disclaimer: This is all just my layman level understanding after doing my best to research the topic for my pets' health. Others with more experience in the hobby, or veterinary expertise have more authority on this subject and are encouraged to correct any mistakes made here.