I began reading to my daughter when she was an infant. One day when she was 5 she correctly read the words on the side of a truck to me. Then another and another. I guess she learned to read by recognizing words that I read to her over and over from her storybooks each night. In the 6th grade, she was evaluated at a 12th grade reading level. And at 28, she’s still a spelling nazi who only texts whole words with correct punctuation.
Irregardless of what others are telling you, there is still help for her!
Your daughter and I are of a type. There is a group for folks like us on Fakebook, called “Grammar Libertarians”. IF she’s on that platform, let her know, she may like it.
That’s the way my Mom taught us. We were all reading quite well before Kindergarten.
I was about 10 years old and I remember my mother told me to spell a word that I never heard before. She was surprised that I spelled it correctly.