Have been looking and searching on Reddit and other sources. But I can't find any sources that show solid research on conversion rate improvements or decreases, with the use of 3D models and or use of AR functionality. Instead of only pictures.
There are a lot of claims of spectacular conversion rate increases, but these are all made by parties that have a stake in supporting these claims (such as Shopify when launching their AR feature).
Also interested what retail segments benefit the most (yes and please back it up with research).
If I have enough information, I can post as summary/the results here.