- Edited
pjw_ Hmm, that is interesting.
Historically, Ledstrain was created as a community that tried to figure out what was happening with older tech and software. Spoiler: mostly dithering and PWM. So most of the threads and complaints here describe eyestrain, headache but there are way fewer complaints about light sensitivity.
On the other hand, on a huge Russian tech forum, there is a way newer thread where people complain mostly about modern smartphones, and light sensitivity is a complaint that often accompanies that struggle. I am one of those people. While both forums have all kinds of problems discussed, most of the participants have different underlying problems with tech. There is also another huge Russian-speaking forum about monitors (thread about eyes started in 2002 and has a few thousand pages), where light sensitivity sometimes arises. It seems that in the English-speaking internet, this complaint is instead scattered among review pages of different monitors.
Now back to smartphones. There are a number of complaints that they do create eyestrain together with red eyes and light sensitivity (on completely healthy eyes). It seems that monitors are less problematic in that regard. Smartphones need high brightness, good readability under direct sunlight, etc. You can use Note 10 lite, and that is definitely one of the 'bad' smartphones, it gave me a lot of trouble. So if by chance you faced something that is similar to those complaints, it should bother you only on a very-very limited amount of screens.
Complaints look like this: https://libredd.it/r/Monitors/comments/pmmt2l/trying_to_reduce_eye_strain_and_headaches_from/
At this moment of time, no one can tell if light sensitivity could be also triggered by FRC dithering/other dithering/anything else, I just see that there are few complaints about light sensitivity in that regard.
I collected a list of every known problem so far, you can go through it and check if anything helps. The smartphone problem is named Problem X there.
Part 1 https://ledstrain.org/d/1404-eyestrain-triggers/11
Part 2 https://ledstrain.org/d/1404-eyestrain-triggers/12