Seperate Geometry displayed in Left / Right Eye to create Stereo Photos on Quest?

Hi Felix, I have this working reliably (ish) on Quest and have just done what you describe.  I think there might be some bugs in the both eye camera settings though as I noticed that it seems to set the eye separation to 10 cm instead of the 6.n cm that single-cam mode provides, so I perceive a scale jump on switching between the modes, but this appears to be common to both Quest, link and editor. My guess is that the both eye camera setting is not commonly used and might be buggy, but I've not had a problem with the stereo rendering that you mention.  Let me know if there is anything more I can do to help.