I would continue what you are doing for now; it's not simply regarding the concepts but also the study skills as well as applying the things to paper. I would say that sometimes brute force dictation could help for languages and perhaps ask her to blurt out the things she remembers as well as summarise notes and give herself quiz questions? That might work? Any past papers? That could also be fine.
I think that she should apply herself to regurgitation in the form of questions and there is a reason why we memorise formulas in mathematics and sciences - it is probably far easier to solve the models if you already have the formulas in your memory rather than having to derive them out.
Even if developmentally her executive function may be on par with age peers, if her IQ is genuinely extraordinarily high that could still indicate an EF disability. But this is complex - I know psychiatrists who even extend this further into maturity and personality.
I think that the daughter should try to apply herself in small periods of time, perhaps that may work better? Also she should learn how to finish the things she promises to start within the time she promises to do so - it is a very important skill.
If she finishes 99% of the way to her university/high school applications and then forgets a few documents to finally enrol, by the end then she effectively is forced to take a gap year. Don't forget about that. That became me. I still regret it to this day though fortunately because some people were stupid and chose to harass me I have legal recourse.
