The gambling platform can give you a better answer from their analytics results. But as far as I understand, those who are addicted to gambling never follow the market conditions, they continue to gamble in any market condition. So casino sites never lose to addicted gamblers. But Bitcoin has a pattern and it follows halving so it is always volatile, this is the religion of Bitcoin. But gambling sites always run their own way, but rather increase traffic day by day through attractive advertisements.
I don't think anyone can give a specific answer here, not even the gambling platforms.
But yes, here we can give our personal opinions in different ways from different points of view and they are also true, for example, when the price of bitcoin decreases, the prices of all the coins in the entire crypto market automatically go down and in this case many traders face losses and in order to recover these losses quickly, many people gamble out of greed and many want to show this as an argument that gambling platforms can generate more profit at this time.
But this argument doesn't seem to be able to be shown by any specific number or percentage. So I will call this question a hypothetical question to which we do not have a correct answer.