Update | Do you really need a 240 Hz or 300 Hz laptop display? The common misconception about high refresh rate monitors
No, you don't need a stable 144 FPS to take advantage of a 144 Hz display. For gaming laptops in particular where CPU and GPU power are limited, these 240 Hz and 300 Hz high refresh rate panels are more useful for their wide range of divisors than their native refresh rate.
Allen Ngo, 01/13/2020
Desktop Geforce Gaming Monitor Laptop