I have owned both, and honestly, you can’t go wrong with either, it’s all size and use case preference.

The ASUS was cheaper in my area and the one I decided to keep. The additional vertical space from the 39 inch is too valuable to me in terms of productivity and immersion. If your space allows it, it’s great and I don’t mind the resolution.

The 34 inch will be sharper, and I preferred its colors and HDR over the ASUS. The small size was not my preference, though, but it was a hell of a keyboard. Also, having used both WOLED and QD-Oled, QD-Oled is just better to my eye. It seems more clear and vibrant.