i def understood the op meant “chassidic” not “chossid” like in chazal but wtvr. Cud be (but not sure) there was always an undersatnding by litvish as well to avoid depression and have a joy in life and yiddishkeit. Regardless, nowadays theres for sure an awareness in most litvish yeshivas about it. Modern psychology also caught on to the importance of happiness.
also,
גהנום
Different strokes for differnt neshamos.
I know a few peopl that discovered chassidus (each one their flavor) after they finished bais medrash and are thrilled. BH. I’l try to explain what i feel to be the answer of op later imyh.