Emails from Amazon show links and not images on all my devices in Gmail. This is true for my windows PC, my Amazon fire, and my Google Pixel 3. I used Gmail on all of them
Welcome to Android Central! Open Gmail in your computer browser, click the gear icon in the upper right. Under General, make sure the Images option is set to Always Display External Images.
I'm having the same problem. I did check my Gmail setting and the Always Display External Images is set. Amazon emails used to show the images. It changed to links instead of images showing about a week ago.
Are you able to confirm that those emails sent to a non-Gmail account show images? Maybe Amazon changed how they send emails. Or do you see any "broken image" icons in the email?