Comparing extracting a square root my hand is rather different in scope than reducing / simplifying equations entirely. The TI-92 could basically do all of your coursework for you up to college level, if memory serves.

The real question isn't "is it okay to use a tool" but "how does using a tool affect what you learn".

In the cases of both LLMs and symbolic solving calculators, I believe the answer is "highly detrimental".