Oh, I use use AirDrop to myself for this. Yes, given my photo library syncs to iCloud, just opening Photos seems like it makes sense on a fast WAN which I sort-of do have, but of course, iCloud syncs only happen when the device decides the mood is just right, and can't be triggered manually, because I guess that would just be 'clutter' in the UI.
What drives me absolutely nuts about AirDrop is that it's only device-to-device even if devices are on the same WAN.
My wife and I have home offices at opposite sides of the house with hardwired desktops and Wi-fi APs, but we can't AirDrop to each other as we're out of range for it.