Addicted gambler usually focus on one gambling game which they think they can win, and because it's really challenging, they also challenge themselves putting an amount that would put much excitement that could affect their financial status in life.
There is no type to that since addiction is addiction, that is no different than other addicted gamblers.
They bet money on it, they always play it, what is the difference? They are losing a lot of money despite them betting small money since they are still gambling and still, they are losing. All I know is that their playtime should be reduced to improve lives.