No, dogs should not eat hash browns because overall they are bad for a dogs health. Hash browns are full of salt, fats and preservatives which are bad for a dog.
All these ingredients can lead a dog towards obesity, diabetes and pancreatitis.
Therefore it is best to fully avoid trying to feed hash browns to your dog because they just aren’t overall good for them.
If your dog was to eat a very small amount they should be fine but you should watch your dog for symptoms such as diarrhea, vomiting of lethargy. If you notice any of these signs it may be a good idea to take your dog to see a vet and get checked up.
On top of all this information dogs in general do not need carbohydrates in their diet. It is included as a necessary ingredient in dog food to make it filling but dogs shouldn’t be eat carbohydrates directly.
Dogs are carnivores and majority of their diet should be made up of meats.
No, you cannot or should not let your dog eat hash browns. Don’t leave them on the table either where your dog can sneak some as they may try to do so when you are not looking.