I can eliminate PWM on some of my monitors by setting the brightness to maximum and lowering contrast and the color levels. When I watch those monitors for a full day, my eyes are OK. When I watch my laptop (240 Hz PWM) where I can't eliminate the flicker, my eyes are tired by the end of the day.
When I first learned about how LCDs are made, I was furious that after all the problems with CRT monitors, LCD makers resorted to such a poor choice. The world my eyes see is flicker-free. Why should monitors be different?
The technology for flicker-free LCDs exists and it's called calibrated color level compensation. It should be the standard.
I kinda need both my eyes until the end of my years, so I'd appreciate it if manufacturers stopped wearing them out with PWM...