I know a very intelligent woman: graduated in 4 years having a 4.0 with a double major in CS and Chemistry. She was extremely gung-ho about going to university

I know a very intelligent woman: graduated in 4 years having a 4.0 with a double major in CS and Chemistry. She was extremely gung-ho about going to university and achieving her PhD, and I naively believed at the time that she'd have no trouble accomplishing her goals. Enter competitive research academia. She felt constantly defeated by classmates and advisors who seemed to be working against her at every turn. One advisor, whom she trusted, moved to take a job with another university. She followed in the hope that she could shed the toxicity of the current working environment. Turns out that the new place was just as toxic. She finished with a 4.0 through grad school but never defended the dissertation due to burnout, tired of the constant struggle for resources, attention, and just plain basic humanity. She now has a subservient role to PhDs she could run circles around intellectually.