This is a serious question, though I doubt anyone who sees this will be able to answer it.
Does Amazon pay for a live-look at conversations between Shipt shoppers and Shipt customers? This app notification happened during my Shipt conversation about the product. (I was stupid-lucky to have a second phone on the desk, to grab the photo.)
(To be clear, I'm not one of those people who thinks everything is always listening; I discount stories about "my wife and I discussed X and I was getting ads for X the next day," as mere coincidence/good-algos, not machine consipracy. But this... The logical conclusion is not "wild coincidence" but "algo working as expected," right?)