I used to use .@AmazonPhotos primarily for my . @amazonfiretv screensaver, but because of something .@amazon claims was a violation of terms of agreement but refused to identify my account has been locked and they refuse to unlock it. The team that made this decision is "offshore" and all have Middle Eastern names, so I assume someplace like India.
As a result I have all but stopped using the .@amazonfiretv and have gone back to using my .@Roku device; they have a screensaver that supports .@googlephotos.