In the foveal center just a very few cones are effectively wired to one or two retinal ganglion cells. Little divergence of signal. But the aperture of a cone is well under a micron. In the nasal periphery cone apertures are much larger and single cones could be targeted. These large cones will activate large networks and indirectly perhaps dozens of retinal ganglion cells.

There will be a literature on the psychophysical detection limits. I suspect you will find most individuals would report a tiny blip of light in both regions.

Here are some fun references:

1. https://www.cell.com/current-biology/fulltext/S0960-9822(21)...

2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8300048/