Enby is an umbrella term that can includes people who are transmasc (ie: demiboys, libramascs), transfems (ie: demigirls, librafems), multigender, agender, genderfluid, and xenogenders. Transfem just describes the direction of transition and is not just limited to binary trans women.
Transfem and enby are mutually exclusive terms, a person can be one or the other but not both.
Enby is an umbrella term that can includes people who are transmasc (ie: demiboys, libramascs), transfems (ie: demigirls, librafems), multigender, agender, genderfluid, and xenogenders. Transfem just describes the direction of transition and is not just limited to binary trans women.