I added a section just now with something I had missed: o3 DOES have a loose model of your location fed into it, which I believe is intended to support the new search feature (so it can run local searches). The thinking summary it showed me did not reference that information, but it's still very possible that it used that in its deliberations. I ran two extra example queries for photographs I've taken thousands of mi…
> (EXIF stripped via screenshotting)
Just a note, it is not necessary to "screenshot" to remove EXIF data. There are numerous tools that allow editing/removal of EXIF data (e.g., exiv2: https://exiv2.org/, exiftool: https://exiftool.org/, or even jpegtran with the "-copy none" option https://linux.die.net/man/1/jpegtran).
Using a screenshot to strip EXIF produces a reduced quality image (scaled to screen size, re-encoded from that reduced screen size). Just directly removing the EXIF data does not change the original camera captured pixels.