I use my iPhone 16 pro Max a lot ( 8 hrs average screen time ) and I’ve started suffer from eye strain…. Tearing eyes mild ghost images that fluctuate on blinking - been to various doctors too full eye examination… almost guys see the image below if I look at it for a few seconds and look away I get an image on the wall for a flash of a second but reverse ( as in a white text ) of the word show….
My iphone 11 on IOS 16 is still great. I cant update OS as it triggered something.
Had two battery replacements over the years.
The only time its game over is if apps I use stop being used on IOS16, such as banking apps, paypal, instagram/facebook all what I use to run my business.