There doesn't seem to be any basis for this. They have admitted that they haven't tested the camera. Their reasoning is that Samsung talked about the wide angle lens and didn't say much about the other camera improvements. Well the new lens is going to take center stage and Samsung had a lot to talk about in the event because there were a lot of products and new features. They were not going to spend 20 minutes talking about computational photography like Apple did. Apple had nothing else to talk about, although admittedly the new cameras in the Xs/Xs max are really good.Guess we will see. While I don't expect it to beat the Pixel 3, I hope it is close.
https://www.theverge.com/circuitbreaker/2019/2/21/18234400/galaxy-s10-camera-vs-pixel-iphone-preview
Dxo mark didn't give the note 9 and S9 + much higher scores than their predecessors and I think this was quite rightly so because there wasn't much improvement. Perhaps there is this time.