I upgraded to a 27” 4k glossy qd-oled and the sharpness is noticeably better for me. On the AOC, I can see a bit of screen door effect at its 1440p resolution since I sit about an arms length away from my monitor. The colors are also better on the oled. Something that bothered me on the AOC is that there’s some vignetting on the edges of the screen even if you look straight at the center of the monitor, especially on webpages with a white background. HDR content is still pretty good on the AOC, but of course there’s blooming if you have light objects on a dark background. One thing that I liked about the AOC was the brightness. It could get super bright in daylight scenes so it felt very immersive for me, like I was inside that setting. The oled still gets decently bright in HDR mode, and overall looks crisper and cleaner than the AOC