Looking through the info they have on me, it seems entirely made up of information regarding past purchases and shipping locations. It mentioned having 2 people at my address, but said other person has an account linked to mine and with the same shipping address, so it’s all relatively shallow information. I didn’t see any deep dive “HOW DID THEY GET THAT??” stuff that would otherwise be alarming.
Edit: I should add that I don’t own or use any of their Alexa products or any related technology. Those might spy on people a little more thoroughly.