Use of PWM to control brightness in XPS 13 9300

Question

Hello, I am very interested in the Dell XPS 13 (9300), but I am sensitive to PWM. Would anyone have the information if the models with FHD or 4K screen use PWM modulation to control the brightness? And if so, the frequency of the PWM and if it occurs at all levels of brightness?
Thank you in advance.

blob007 · Answer

Oh, forgot to mention its at 2500Hz. (I personally don't notice a thing)

blob007 · Answer

There's a review from March 2020, where they detected PWM when brightness was below 20% in SHP14CB (FHD) panel used in 9300s at the time. If they still use the same FHD panel, the PWM is probably still there