Here's the new Google Cardboard image with the template scaled up to match the raw output from the Spectacles underneath. It's gone from a 1.2Mpx screenshot on the iPhone 11 to a 10.3Mpx image in the template: an upgrade that's almost exponential.
It still drives me crazy that the two cameras are not color-corrected to match each other, and that there's no exposure correction to keep from blowing out an 8:00am sky.
But this is a good start.