I'm glad that this is bringing attention to flicker sensitivity.
Here are some other things that people are sensitive to: - CRI on white LEDs (and flourencents). CRI is how clean the spectrum is in comparison to the sun or a incandescent bulb, where the specturm is completely even.
- Motion blur Motion blur on LCDs (such as ~50% of Nintendo Switch 2s) can hurt eyes trying to keep track of what is going on.
On the other end is motion stutter on OLEDs. Because of sample-and-hold, the blur goes away but the image stutters on slow moving scenes instead. If your eyes are sensitive to PWM (mine are) it's quite annoying to watch OLED movement as well.