I think that answers my question. My learning app isn't very good and listed both 푹 and 전혀 as meaning "especially." I had learned 전혀 before but never heard 푹. Thank you!

Generally 전혀 is together with 않다.

폭=deeply 전혀 =never 나는 그에게 폭 빠져있어요. I am deeply into him. 나는 그를 전혀 좋아하지 않아요. I never like him.

Both are used .The two have totally different meanings. What do you want to say?