I heard recently an interesting thought about alcohol addiction. It was said that from birth one can say about a person whether he is predisposed to alcoholism or not. The whole secret is allegedly how well the body produces an enzyme that raps alcohol https://www.mydr.com.au/gastrointestinal-health/liver-and-alcohol-breakdown. And if this enzyme is produced well, then a person does not appear addicted to an alcoholic.
Perhaps this idea makes sense.
And perhaps the same approach can be outstripped regarding gaming addiction. Someone has developed excitement in a greater degree, and someone can play at least for days, but without excitement and not feeling any influence. The question is very individual.