it is possible that one of the apps on your phone is a trojan,
and is creating a generic “red herring” in order to hide what it’s really doing.
it also is possible that this is just some Google keep-politically-correct-images-available stuff, and those images are part of your Android’s current install, or part of another app’s current install, and your Android is seeing those images, & is thumbnailing them.
Either way, I think it’s Android doing it, not some app you installed ( Google’s photos app, is most likely culprit )