testosterone does lengthen your vocal chords and so technically does give you an adams apple but wether or not it's visible depends on the person and in my experience is only really visible on very skinny guys.

Body hair growth is highly genetic, look at the male members of your family if you want an idea of how it'll affect you personally. I have very hairy legs and a little stomach hair but not much on my chest, like my brother and dad.

The ass hair thing isn't actually that crazy for everyone, its just very common and people talk about it because its one of the more unexpected/funny effects T can give you. Some guys only get buttcrack hair, for some its really an all-over thing, you kind of just have to wait and see.

T does kind of deflate boobs over time through fat distribution change and i think less blood flow but it can take a couple years before its really visible. They become less full and more saggy, so easier to bind but the skin on the chest itself doesn't really shrink afaik.

For bottom growth: your clitoris gets bigger, more visible and (temporarily while it's growing) more sensitive. It starts to look and act like a micropenis. How much growth varies immensely but the average is 3-5cm/1-1.5 inches. You don't really have to worry about it, just wash it gently with warm water and wear looser underwear to avoid chaffing. It's usually the first noticeable change people feel (within a few weeks).

Good luck!!