I checked the internet for his recorded gambling addiction and it goes back to 2018 we don't know if he is already gambling in his early years as a rapper, but we have many cases of rappers into gambling like Snoop Dog and 50 Cent they even have songs about their gambling addiction, and Drake is not the only one who posted his winning, Snoop Dog posted his one pound marijuana he won in the Canelo - Alvarez fight in his instagram account.
What happens is that it is difficult to know if such a person has been able to beat their addictions, after all many think that in order to beat an addiction completely then you need to completely stay away from it, but there are some people that can control their addictions to the point they can do so responsibly, one example of this is alcohol consumption, so while such a huge bet may seem like a sign that he is not over it, at the same time he earns so much money that if this was the only bet he made during the whole year then this is not a sign of a gambling addiction but of someone that has finally controlled his impulses.
We can hope that Drake can really control his behavior in the gambling games. Although he uses big money to gamble, he can still control himself. With a lot of money, he needs to manage it and not spend that money on gambling, but that will be up to him. Perhaps, he has a good history of controlling himself in gambling games. No matter how much money he uses, he will not get the side effects of addiction to gambling.