Academic performance is about performing well on closed book written exams covering narrow subjects. The whole system is designed for 19th century teaching and testing. Using a computer does not help with that whatsoever and may in some cases hurt (by distracting someone who should be studying).

I tutor high school kids as a volunteer (next year will be my 10th year doing so). Over that time period I have noticed a sharp decline in a lot of basic academic skills: mental arithmetic (without a calculator), spelling, grammar, handwriting. These are the very skills one needs to master to perform well on closed book exams. Your ability to research a topic or get help from Google (incl. spellcheck and grammar check in Google Docs) or ChatGPT is of no benefit whatsoever when all you’ve got is a pencil and a piece of paper in front of you.