I used to watch a lot of video interviews with addicted gamblers. They told me how they went through treatment and one thing struck me. More precisely, this thing is quite natural in relation to addiction treatment, as I understood later, but I did not immediately understand the logic. We are talking about weaning from gaming. I thought that weaning from gaming would most likely only work in very advanced cases, when the player is at the bottom of a financial crisis or on the verge of suicide. Then weaning from gaming would most likely work well. But if this is not the case, then what is the benefit of weaning from gaming? Perhaps the logic is to create positive habits in a person. But, in my opinion, this does not allow us to identify the main reason for gaming and work on it. In my opinion, the real reason is that a person has a naive desire to get rich on gambling (, but he does not have even the slightest competence for this and it is more than likely that they will not appear. This is if we are talking about sports betting. If a person wants to get rich on casino games, such as roulette, and does not want to know anything about risk management and money management, then weaning from games is really necessary. And what do you think, does refusal to play (deprivation) contribute to recovery from addiction or is it useless?
Imho not every approach needs to be about "bigger root reasons" to explain your behavior. Even if psychotherapy-like treatment would work for you, it doesn't mean it's a best road for everyone.
There are other fields in psychology like occupational therapy that can help with concrete issues to help you get back your feet again. Creating positive habits can work as creating a new healthy baseline where you can start to fix your life.
You don't need always to reconstruct your psyche just to get rid of some bad habit and there's nothing wrong with some level of deprivation if you are doing it right. Because with addiction, it's literally doing something you are addicted to makes you lose control, because your addictive side takes over so why wouldn't you avoid it?
Deprivation doesn't work for everything, but it works with substances, or actions you take. It wouldn't work with something like intrusive thoughts, if you tried to not to think about something, because that's not how brain works. But you can find other things to fill your days and get meaningful life without something.
Some things are basic needs that everyone needs, but sometimes those needs are just filled with replacements, because wiring of your brain allows to use those replacements and re-route that wiring trough them, so you don't even know what you needed in the first place. Imho this is one of the deeper issues in addictions although it's not consensus in psychology.