She is not the woman that she used to be. ve She is not what she used to be. arasındaki fark nedir?Sadece örnek cümleler vermekten çekinmeyin.

They are very interchangeable. If there is any difference at all, it's "the woman", emphasis is more on a feminine quality that has changed.

To me, "what she used to be" has more weight to it. A more serious change. You might say "she is not the woman she used to be, her house was so clean the last time I was there. Why is there trash outside her door?" vs "She's not who she used to be, ever since she got addicted to drugs"

Like I said though, they are actually very close to meaning the same thing.