In one of her older videos, way before she started her main chanel and when she was still openly guido, she talked about her parents and from what I remember:
1. Her parents are both present in her life.
2. They raised her with a lot of love and even paid for the college she dropped out from
3. Don't mind her living with them
4. Her biggest childhood "trauma" is her baby sister being born and receiving more attention at first.
5. Her parents bought her a Chanel necklace which she lost, so they bought her another one.
Which leads me to conclusion is that she was just spoiled as fuck and used being the center of attention, that once she grew up she seeked to be the center of attention somewhere else. Since she's not very bright nor talented, she had to settle to being in the center of attention on an anonymous boxxy simp image board. It also explains why is she so lazy, she's used to her mommy and daddy doing the work for her. When she was still dating Greg, she revealed her mother was cleaning her room and found her BDSM gear (she was 26-27 at the time).
Her little sister on the other hand has a masters in a STEM field (biochemistry I think?), has studied abroad in Italy and learned to speak fluent Italian and was a part of her university's track team. She only appeared in June's old channel videos way back when she was still in middle school but never on her main channel. She only has some private social media profiles and most of June's fanbase don't even know she has a sister.
So I think it's not really big daddy or mommy issues as much as being a spoiled womanchild.
EDIT: Forgot to add but she had boobjob done way before her internet fame so I'm guessing her parents paid for that too?