This is why creating time and space as a gambler is very important, the more time you spent in front of a slot machine the likely the machine studied you itself but if you spend less time and come back after some days it can't tell if it was the same person or a new body.
This might sound crazy but it's a fact, it is the same advice I give people when they win some money, if you continue to gamble after winning you can lose everything again, the lower the time you spent the better it will be for you.
It all depends on luck for sure but there is another reason why casinos always come out on top, it's the burning fire of greed in we human, we always want to win so we end up trying and trying, unfortunately this is what the casinos need you to do.
By the way, no matter how strange it may sound, you were right that during a long game the device somehow begins to "read" the player. I can say this with high probability, since I have noticed something similar more than once. It seems to me that a certain program is embedded in the algorithm that is responsible for this. After all, not only the developers themselves, but also psychologists participated in the creation of the program. This is no longer a secret for anyone. Therefore, it is even logical to reason like this.