Obviously as someone who has used phones and laptops in the past that had pwm and experianced issues with them i am keen on pointing out this issue wherever i see it.
PWM is known to cause people issues, anyone can search with google and find out what i'm talking about and weather or not what i'm saying is 'junk'.
All i will say is
https://www.notebookcheck.net/ tests for pwm on all devices it reviews for a reason and it is the most popular laptop review website on the internet so that should tell people it's more of an issue than you believe.
One final point about the iphone thread,there is nothing intrinsic to oled that causes eye issues over lcd other than the fact almost all oleds use pwm such as the iphone x,if you actually read the thread i posted earlier you would realize the problem is pwm.
If Apple used pwm in say the iphone 8 or Xr you would see the same issues being reported but they don't because they don't use pwm so stop fooling people into thinking pwm isn't an issue when it is an awful technology that i repeat should of never of been used in retail products.
Think this will be my last post on this anyway as i don't want to come across as a kobo basher as i actually bought the device and love the feel of the forma but i couldn't stay silent on this issue when the sole reason in my view for an ereader is that is provides a comfortable book like reading experiance.
PWM doesn't effect everyone that's true but for those it does it's a nightmare,enjoy your day