Though: It’s possible to be addicted to frumkeit. A religious addiction is unhealthy and the person uses religion to escape from life versus live with truth, meaning, and closeness to Hashem etc.
I am not sure I understand this comment. An addiction is caused by the Evil Inclination. Either, the religious addict has defeated his evil inclination, or his evil inclination is telling him to perform Mitzvas and it is acting like the Yatzer Tov. Also I am not sure why it’s unhealthy? Doing good deeds are unhealthy, how and why? Also how do you know that they are doing it to escape from life and not trying to get closer to Hashem.