Compared to, for example, another headset, say a Reverb G2, it has a 4320x2160 resolution. How it works in this case, running a quest2 is a major sacrifice for pc when using the 1.7x render (since the resolution is 5408x2736) ?
As Unseul has said, the Reverb G2 has to account for Barrell Distortion too, same with the Valve Index etc. For example, if you go into Steam Settings for the Valve Index and set the resolution to 100% it won't be 1440x1600 per eye, which is the resolution of the headset, but it will be 2016×2440 to account for the distortion.