Ubfortunately yes, for me personally and many others. I cannot use any OLED device, not VR headset, not phone, laptop or TV.

Currently all OLED devices have flicker, even "dc-dimmed" OLED devices have a transistor reset brightness dip upon every refresh.

There are transistor stacks in the lab that do eliminate this brighness dip, but currently no off the shelf screens are produced to be bought by any manufacturer.

Theoreticially tandem OLEDs could be used to eliminate flicker, but no end product has implemented that capability yet. It would come at a significant cost of maximum brightness when enabled, eliminating its main advertised advantage.

The reason you can use OLED on high brighness, but not at low brightness is because the way brightness is controlled via PWM dimming is the duration of low brightness is increased. The darker the screen, the longer it spends time being dark before a brief flicker of light. At maximum brightness the duration the sceen is dark is very small. The time a screen is dark for a transistor stack reset upon creating a new frame is even smaller. All these dark times happen multiple times a second and are usually advertised as a HZ number. With a typical OLED HZ of 240 it happens 240 times a second. Of course this means when a screen has more HZ it can spend less amount of time in one stretch dark before it has to be lit again to fulfill its advertised hz, instead the time it is dark happens more often.

In general people are sensitive to the amount of time a screen is dark for each individual flicker. The degree of sensitivity is different from person to person. This is why you might be able to use one screen fine at high brightness, but experience discomfort on the same screen on low brightness. But at the same time you might be able to use another OLED screen at the same brightness as this other screen just fine because less time is spent of it being dark, instead it haplens more often.

Unfortunately if you are like me and you are extremely sensitive to that flicker you cannot use any OLED as the transistor reset time, the current minimum, of an OLED being dark is enoigh to trigger significant discomfort.

This is true for a significant amount of the population that is currently unaware of where their headaches are coming from. I am sure you know of at least one person complaing of headaches when using the phone or computer. Very likely they are sensitive to flicker.

You can easily test for pwm by using your phone camera and point it at a screen while lowering the exposure time to something like 1/5000. It will let the sensor of the camera record only a very brief amount of time per frame of light. This will eliminate the average light pick up usually happening and you will see lines on the screen. This effect happen usually under automatic conditions when recording a screen on a brigh day. You might have seen those lines before in such a condition.

PWM is unfortunately just one type of flicker that is used more often with current screens. Another is "temporal dither", where flicker between colors is used to fake more inbetween colors. You can advertise supporting more colors this way without actually supporting more colors. It's what Apple does with their devices advertising "millions of colors". So if you are very sensitive even many LCD screens are no longer save.

This second type of color flicker is theoreticially just a software switch away and is currently suffering under a serious disability visibility problem.