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.
But we can still plan to manage up our bankroll for a more or little sustainability, if we plan to ration it over time and uses a small amount to gamble in other to increase our chances, this will help us not to get more exposure to risk of losing at once instead of having more opportunities to attempt more, maybe it could come as a luck for us to win at the cause of trying more, this also could help us maximize the number of times we may be gambling playing bets as much as we may want, though we can include on any other requirements that we think are needed for taking a particular bet we want and still have more fun.