I’ve had several different types of dogs, and they all farted a lot. I think it’s pretty much standard.
There’s an easy way to solve it though. There’s a product called “Beano”, a type of digestive enzyme, which is sold in most supermarkets near the vitamins and stuff. It’s used to control gas. Say you’re on a first date, and your date wants Mexican food. I keep a couple of Beano pills in my car for these occasions, so I’m not farting it up an hour after dinner. You can buy in it liquid form too so you can add a couple of drops to your dog’s food. It has a bit of a funny taste by human standards, but believe me, the dog won’t know the difference. The dog might still fart from swallowing air, but it won’t stink anymore.
I have heard of people having allergic reactions to Beano before. Is it possible for a dog to have a reaction too? I don’t know but you might want to start with just one drop in his food the first few times, and make sure he doesn’t get sick. Then increase the dosage.