Good news and bad news for anyone still watching this thread. First the good news, two pieces of good news. Did a little more actual testing last night of HDR and wanted to see exactly how bad/good the miniled blooming was. Watched a few HDR testing videos on Youtube. First off HDR looks amazing. The videos were jaw droppingly good. There is bloom on small light sources, which is to be expected, but it didn't detract from how good the videos were. And I have not noticed it in any games or doing any work on the desktop. The other bit of good news is that the monitor has started to remember the HDR settings. I am not sure what has changed in the last couple of days, but I can turn on and off the monitor, switch to SDR and back to HDR and it remembers the HDR settings all the time now.
Well the bad news. I noticed my eyes were getting tired more than usual, despite not noticing any flicker. I just thought it was my eyes adjusting from moving to 4K from 1440P. I even increased the scaling yesterday to see would that help. It didn't. This morning I did some testing for PWM. I should have done this the first day I got them monitor. Anyway, the monitor does use PWM
It turns out all the MiniLED monitors that have this panel use PWM, like Philips Evnia 32m2n6800m for example.
So I am going to return it. PWM kills my eyes.
Well the bad news. I noticed my eyes were getting tired more than usual, despite not noticing any flicker. I just thought it was my eyes adjusting from moving to 4K from 1440P. I even increased the scaling yesterday to see would that help. It didn't. This morning I did some testing for PWM. I should have done this the first day I got them monitor. Anyway, the monitor does use PWM

So I am going to return it. PWM kills my eyes.
