Google just started doing that years ago, even before the majority of people knew what AI was.
I could easily be wrong, but I believe it was even on photos that somehow weren't in the cloud yet. (That doesn't sound right to me, but I have a memory point about it, so here it is.)
As AI became more mainstream, even before the current bubble, they started to restrict it to make it seem less scary. (They stopped doing complete galleries of pictures grouped by items and just made everything searchable, which seems benign. In reality, it's much worse.)