I know this is not at all the optimal solution, but could you set a stick-figure drawing as your "official" online photo? And then just tell google that this is the photo they should be using?
I don't know if it would work because I suspect Google has algorithms to detect faces and won't let you set something that doesn't look like a "real" face to your profile picture.
And setting a random stock image photo of someone seems like a bad idea. There's software out there that can generate a fake face that might pass the Google "real" face test, but for how long? When Google changes their algorithm, will that face get rejected and then you're back to square one.
I don't know if it would work because I suspect Google has algorithms to detect faces and won't let you set something that doesn't look like a "real" face to your profile picture.
And setting a random stock image photo of someone seems like a bad idea. There's software out there that can generate a fake face that might pass the Google "real" face test, but for how long? When Google changes their algorithm, will that face get rejected and then you're back to square one.