JRUK Since the X left me feeling very unwell I started on this journey of finding out about PWM etc. Now the world is filled with PWM issues from the flashing lights in my office to the lights and screens they put in cars. It's depressing.
OMG it is as though what you have said was spoken right out of my mouth! I am still holding on dearly to my iPhone 7 Plus from 2016. I have changed the battery, changed the broken glass screen and did everything to prolong the life of this last great LCD iphone I have owned.
The issue I have with XR and 11 aside, there is no way I can go back to using 828 resolution screen.
Look, about what you have highlighted above about PWM everywhere, it is something I have been actively researching about as well. If you suffer from chronic migraine, it is no surprise that each episode may last up to 72 hours on average. I too suffer from this thus I believe I am more familiar about this than most people outside.
PWM by itself is not the worst problem. The problem becomes worse when office/street use very high intensity brightness lamps and also changed the colour temperature from the traditional white light to a bluish- light. This bright and bluish-light combination is supposed to keep us active, alert and be more productive throughout the day. However for individuals like us, it is simply way overkill. Hence our nervous system interpret these lights as threats and respond to them as persistent migraine.
To reduce the way our body react to the above, the best workaround is to wear FL-tinted glasses. Do look it on it. It works by blocking out wavelengths responsible for triggering our migraine. Cautious though that a number of manufacterers will claim they are using FL-41. For reduced response to flickering, FL-41 tinted works best. For bright and glaring lights, dark polarized lens works best against them. For bluish-light at night(they are less noticable during the day), blu-light blocker lens that blocks over 99% of blue light works best.