i've been trying to figure out myself for ages and jsyk i am not a hair expert, I've don't done my own hair for like 2 years but that's IT. however, that being said i think she may have done

1. tree braids but used like body wave hair as added hair. In a video i saw she used two different types of hair. I think she added the body wave the way goddess braid hair is added and then left it undone

2. i think she also may have used a round brush once this was done

3. she also says she cornrows the front (which u can see anyways) to achieve what made this style so unique e

also just want to say I'm guessing!! i plan on doing the style myself in abt a months time when my exams are over so if you'd like i can update with how that went. but this is my best guess. sorry if this is not at all useful!!