Note that they are not photos where the cell phone was removed by Photoshop, they are just people pretending to have a cell phone in their hands.
From https://www.removed.social/about :
> The large format portraits are of individuals who appear to be holding personal devices although the devices have been physically removed from the sitter’s hand. They are asked to hold their stare and posture as I remove their device and then I make the exposure.
> The large format portraits are of individuals who appear to be holding personal devices although the devices have been physically removed from the sitter’s hand. They are asked to hold their stare and posture as I remove their device and then I make the exposure.