If we talk about probability then a number that has not come out will have a higher chance in the next round, but we don't know when the number will come out and we need to wait for how many rounds. But I'm not too sure about tricks like that, especially since online gambling usually uses hashes, it would be more difficult to predict.
Like the Martiangel trick which increases the bet by half when we lose in the previous round, but there are times when we lose continuously and increase the bet continuously and if the balance is no longer enough, then in the end the balance will run out before the win comes.
I don't believe in tricks, I prefer to use feelings