Yes, Notebookcheck regularly measures PWM in displays: https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartphones-and-Tablets-with-PWM.163979.0.html https:

Yes, Notebookcheck regularly measures PWM in displays: https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartphones-and-Tablets-with-PWM.163979.0.html https://www.notebookcheck.net/PWM-Ranking-Notebooks-Smartpho... For OLED I remember reading that PWM dimming is necessary because DC dimming causes shifts in color/whitepoint.