I believe that if we're playing a game with a house edge, where winning depends purely on luck, then bankroll management doesn’t really matter.
What you deposit is already intended for gambling, so whether you go all-in or divide it into smaller bets, the reality is that bankroll management won’t change the odds. It just adds an extra layer of stress in making decisions that, in the end, won’t really affect the outcome of a luck-based game.
If you want to test your luck by placing big bets too quickly, you will lose or win to your luck very quickly. But it will put you under a lot of pressure mentally. So in that case you should play normal gambling where you can keep yourself relaxed and keep yourself away from mental pressure. Everyone says gambling should be done only for fun but how many do it, even though everyone says gambling should be used for fun yet when someone gambles they are hoping for profit. If this were not the case then no one would be motivated to re-deposit after losing a gamble. The most important thing in gambling is to manage yourself. No matter how much you manage your bankroll and gamble it won't do you much good if you can't manage yourself