In regards to PWM, I had to return the 16" Macbook Pro because it caused a lot of eye strain. I don't know if it was because of the PWM, but I suspect it was.
Another issue: I could turn the brightness all the way up, stopping the PWM, but it was then way too bright to stare at all day, which also caused eye strain. When I turned the brightness down, the PWM was initialized. However, the contrast also suffered quite a lot. I would *very much* like Notebookcheck's review to compare screens at a medium level brightness of 250 nits, especially in terms of contrast. I suspect most people use their screens at that brightness level, and this would give us a real-world comparison, based on actual usage. As far as I can tell, no other review site does this, and it is another way Notebookcheck could really stand out. Please consider doing this!