Apollafem is a synonym to transfeminine.
The transmasculine equivalent is athenomasc.
History
Apollafem was coined by reddit user u/yahahawei on August, 17th, 2022 as an alternative to transfeminine, this term more represents always being female/feminine but having the knowledge/experience of the opposite gender.[1]
Flag
The flag was made by the same user on the same day, The full pink design represents being feminine/female 100% with the symbol of Apollo the God of wisdom on it to represent the wisdom of the other gender.