Just skim read your original thread and it sounds a bit like my mum - we never went without anything material (we weren't massively well off but she always made sure we had the best she could afford), but almost no emotional support.
We clashed a lot when I was a kid/teenager, which was probably a combination of the fact that I was ND (undiagnosed at the time) and the fact that my mum has no emotional regulation skills whatsoever. She was very volatile and would fly off the handle and be quite verbally abusive about small things - I was often called fat, lazy, selfish, she wish she'd never had me etc.
I moved to another city at 22 and we had much less contact - the odd text and I saw her maybe once a month - which felt better for me. I sort of pushed everything from my childhood down and told myself I'd made it up, that I was overly sensitive or that I deserved it etc. and told myself that my mum was clearly struggling with her own mental health and that I should give her some grace, and we managed to have an OK relationship.
Then when I got pregnant with my daughter, it really triggered a lot memories and feelings again. I had a conversation with my sister about parenting, mum-daughter relationships and our mum and I realised that my mum never treated my sister the way she did me - her and my sister were really close - she clearly chose to treat me the way she did.
I really struggled after that, especially as my mum started trying to play 'grandmother of the year'. She would send me those soppy quotes/poems about being a mother from Facebook, would gush to me about the 'amazing' experience I was going to have having a daughter, there's nothing like it etc. and it just used to make me feel really angry.
Now she visits me once a week and texts me pretty much every day - usually asking about me and my daughter. I really struggle with it if I'm honest, but she does seem to have changed, she absolutely idolises my daughter and I want them to have a relationship. I just find it hard to watch her be this really hands-on, patient, affectionate grandmother knowing the version of her that I got - I still wouldn't dream of hugging my mum, and as a kid I don't really remember sitting on her lap or getting any kid of affection from her because she never really felt like a 'safe' person.