Google Shopping Ads not shows Amazon products?

I noticed on several searches Amazon.com products show up on Google Shopping Ads.

One of the products was ours, the only campaigns we run are Amazon Sponsored Product campaigns. As far as I know these campaigns don’t advertise off Amazon.

Anyone know the proper answer? Product is on bottom left..

​

https://preview.redd.it/9uf9aunm6xfa1.jpg?width=885&format=pjpg&auto=webp&s=f4839920de7e7ea6f27c1741a7d78139143313a5