Whether or not the Oculus Quest 2 will ever get the 120Hz support I believe John Carmack recently hinted at, I've gone ahead and added options for the 90Hz and 120Hz anyway.

The game also has the update rate as a separate setting to the screen refresh rate as my tests in the past showed that these were not always 1:1 for optimal performance. For example on Oculus Go an update rate of 72 seemed to be mandatory whether using a screen refresh rate of 60Hz or 72Hz. I took this up with the Oculus support team at the time and they confirmed this to be the case.