In v23 of Oculus Link, the new app-resolution slider maxes out @ 5408x2736 (combined-eyes). This isn't a random number we picked for Quest 2. It is *the* number that achieves 1:1 app-to-display pixel ratio at the center of the displays assuming the encode & display is 3664x1920.
In other words, you need to max out the rendering resolution slider to 5408x2736 inside the Oculus desktop app to achieve true 1:1 app-to-display pixel ratio.
The default value of 3616x1920 won't cut it, i.e. is NOT native resolution as you would think it is.
Furthermore,
So while the slider achieves similar results as the "pixel density" override in ODT, it doesn't go into the "super-sampling" range as many folks think it does. The higher you can push the slider, the crisper the app visuals will get, assuming your GPU can keep up w/ the perf hit. Source
In other words, the rendering resolution slider is NOT a supersampling slider (i.e. allowing you to go beyond native resolution). Unless you max it out, you are undersampling and not achieving true, 1:1 native resolution for the Quest 2.
TL;DR Max out the rendering resolution slider to achieve 1:1 native resolution. Below x1.7, you are undersampling