Well, this is Google having an AI classify your images as potential CSAM and having had that for a while and everyone’s cool with it.
The Apple thing was them proposing to run the classification on your phone. On personal, not uploaded anyware, images. People felt that was crossing a line.
The Apple thing was only attaching a hash code to each image and doing nothing else unless you uploaded it Apple’s servers.
Of course you would have to trust that the policy of only iCloud images would stay in place after they implemented a tool to scan everything on your phone, which seems like a terrible bet.