Oh god this was my mother, still is tbh
I was a carer to her from about 13, I did all the housework, the cooking, the cleaning, my dad would rarely help because he thought my mum should do it, but she was abusive as well so left me in a position where I had to do it
She wouldn't have the energy to cook, but if I did it a tiny bit wrong she would have the energy to yell and rant and scream for hours.
There was never enough energy for her to facilitate me having any kind of life outside of school (we were rural so I couldn't do it by myself), but there was plenty of energy for her to have a social life.
If it wasn't for some excellent friends who would invite me around their houses lots (she would let me go because she didn't want to look bad in front of people, but I would be expected to do lots of extra chores to 'pay' for it when I got back) I don't know how I would have coped.
She was constantly taking me to homeopaths and other alternative medicine people to diagnose me with random health conditions, none of which I actually had, but refused to take me to the GP for an inhaler for my actual asthma (I think she didn't want me to see a Dr at all).
She still has 'health problems' as and when she needs them and uses her anxiety to try to control everything, from whether we are 'allowed' pets to where she thinks we should go on holiday. I grey rock most of the time and sometimes wonder why I don't go NC.
I was frustrated by it all though OP and so I was driven to do well at school and leave home the moment I could for uni. If this persons child is too brainwashed by it all it might be harder to unmesh them from her life.