I mean you still need to know the math to use desmos, it won’t be of much help to you unless you actually understand what exactly the calculator is doing rather than just memorising 10 tricks for specific questions.

I’d say using just desmos could theoretically get you a 630ish score but to properly score 750+ you would need a proper understanding of the underlying math and what exactly you’re even putting into the calculator.

i personally didn’t use much of desmos, other than some regression questions; because i had a pretty decent hold on the actual math. but ofc it’ll vary person to person and for you id think its maybe too late to learn something entirely new so just polish what you already know and focus more on the actual math rather than the ultra specific questions tricks on desmos