It is quite possible this person's symptoms are psychological at least to some extent because they can't tolerate "anything." However, I wanted to share this quote because there was a user on here, Jordan, claiming IPS is 100X worse for him than OLED, and he must have said that in response to this post from 5 months ago:
https://www.reddit.com/r/PWM_Sensitive/comments/1jkqi8o/symptoms_with_motorola_g75_5g/
The poster says:
"Does anyone else have these symptoms? OLED screens ruin my head 100x worse, for example. I can't stand them, even from far away..."
Remember how I was thinking it so odd someone was claiming IPS could be "100X" worse than OLED. Made no sense to me, and seemed like an absurd exaggeration, but here in this post we see the the same sentiment but against OLED.
The 100X is a clue there is a psychological component. The person saying something "ruins their head 100X" worse is being emotional, same as Jordan was when accusing IPS of being "100X worse than OLED" for him.
I take more seriously those able to use some screens with adequate comfort. In this case, both the poster at the Reddit link and Jordan on this forum cannot use anything but E Ink, indicating severe screen issues unlikely applicable to most others. As noted as well, there is an emotional component of note. 100X is a huge number, and both are claiming the opposite: for Jordan, IPS is "100X worse" than OLED and for the poster OLED is "100X worse" than IPS.