If it is true that the differential interpretation of the light source causes the disagreement about the percept, we should be able to recreate the effect de-novo:
And we did: We put a pink croc under green light so it looks grey, then added white socks which — reflecting the green light appeared green. People who know that these socks are white used the green tint as a cue that something is off with the light and mentally color-corrected the image. To them, the croc looked pink, even though the pixels are objectively grey. People who took the color of the socks — green — at face value, saw the croc — consistent with its pixel values – as grey.
These guys apparently reproduced the effect.
One apparently either sees white socks and pink crocs, or green socks and gray crocs.
https://www.psychologytoday.com/us/blog/the-life-of-the-mind/202502/the-dress-10-years-on
https://lemmy.today/pictrs/image/b41aa1cd-3d1b-4ef8-886f-2c6494141805.jpeg
EDIT: For me, it’s green socks and gray crocs.