I've never had noticeable issues with eye strain in the past. Been using an iphone 12 with OLED for 2 years without issue, and had an M1 MBA as well and was fine.
I recently picked up a 2021 Macbook Pro 14" with the XDR micro-LED display and after a week of torture determined that it is the display on the computer making me physically ill. Motion sickness, mild headache and general "off" feeling. I've never experienced anything like this from a screen before so didn't consider myself "sensitive".
After doing some research I decided to try the 2022 M2 Macbook Air based on good reviews, lack of measurable PWM, etc.
I'm pleased to report that I have no issues with the M2 Air screen, probably even more comfortable than my M1 Air one.
As a test, I went back to the MBP 14" again this morning after initially using the Air, and within 5 minutes I had that now-familiar pressure point on my frontal-lobe, and the beginnings of motion sickness setting in. That screen is a literal weapon, I really cannot believe how immediate and strong the impact is.
Anyway, FWIW, I find the 13.6" M2 Air perfectly fine, and the 14" MBP literally and almost instantly debilitating.