I'm not sure I agree with the LTPS being worse display tech.
People who are sensitive to pwm say the 15R (which has a LTPS panel) has a superior display to the 15 (which has LTPO panel).
So it seems to me, LTPS > LTPO, if you've sensitive eyes.
I agree, the only reason I choose OnePlus is eye comfort. I don't like design that much, I don't play games on mobile, just have sensitive eyes and cannot stand Samsung or Apple displays in their compact phones and this is the only alternative.