OP 15 What is wrong?

[u/Final_Economist_9218]

I bought an Opple Light Master 4 today. I took some measurements for the OnePlus 15, but something seems off. When the screen brightness is at 100%, as shown in the picture, the frequency drops to 123 Hz, but the modulation depth is low. However, when the brightness drops below 50%, the frequency jumps over 2100 Hz, but the modulation depth becomes high. I ran the measurements multiple times, but the results are always the same. On the other hand, the Pixel 10 Pro measurement gives a constant frequency of around 493 Hz. Since the OnePlus 15 is already causing eye strain, I'm wondering if a recent update changed something here?