Same here!
That’s why a lot of people were experiencing motion sickness and headaches when the iPhone X came out, which is equipped with an OLED screen, which on it’s own is not a problem, but Apple decided to use PWM in a lower(?) frequency, so that in the edges of the screen, some people notice a flickering of brightness in the edges of the screen, so that some consumers went back to older models. There is a thread on Macrumors with thousands of posts by people suffering by that …
I never tried the newer Elektron models, but didn’t have problems with devices like the OP-1, so there are definitely ways to do it right