The most important factor, math functions will not be display properly on kindle.
10.3 inch is far from enough for academic paper display. 13.3 is the minimum requirements.
It has the best exclusive hardware with 10.3 inch display ,a 300PPI screen and 35 LEDs emitting warm light. However, it’s just not worth it for academic usage. It’s really hard to integrate anything other than a EIZO EV series monitor, a printer.
ipad 2021 still not good value for now. 2 years after brought out in lineup, the price stayed exactly the same as years ago. And the only thing that is valuable is merely the 10 inch display. No value gained than a printer.