Currently there is only information if the organic shopping product grid is on the SERP and its position + product names.

However, there is more information available like price visible in the SERP, the # 1 ranked merchant, etc.

After clicking, the grid displays ranking product URLs, their individual prices and more.

In E-Commerce SEO information like that is very important, for example to see at scale how competitive your offering is compared to others and if you are ranking in the grid.

The feature takes up a lot of space and is on a lot of transactional search intent SERPs. In the US the grid takes up even more space than in other countries.