Yeah I too noticed this that I do not have that pronounced sharp Adam's apple, most if not all NON-POISers I know have it visible to some degree, afair DHT is involved in maturation of adam's apple and vocal chords and my beard growth is also kind of slow and only started at 17 but at same time my genitalia are large and I am tall which are high DHT signs so it's weird
My neck just doesn't have it expressing outwards, it's kind of flat in that area like a woman's neck, I remember observing during puberty how it never rly grew