Yup. They nerfed it. They took the the declining exp gain out. So now you have your reset booster then it is a flat line from there. You can use boosters and a ghost according to your activity, but it has little effect. Bunch of Monday armchair developers were not aware that said ex tactics have existed in gaming since its creation and that the yellow bar was just a colorful display of your progress instead of a cold hard data line. Complaining is for the players though 😒