AFAB and AMAB is too often used as an adjective, when it should be used as a verb phrase (assigned x at birth). In other words, it belongs after the noun, not before.

AMAB woman - “assigned male at birth woman”

woman AMAB - “woman [that was] assigned male at birth”

By re-iterating that these acronyms are verb phrases and thus actions, we can re-emphasize the social construction of AMAB/AFAB and combat the tendency to use these acronyms as a way to simply misgender trans people.