Citizen Version:
Texture size - 1k (normal 2k)
LOD0 - 1526
LOD1 -  1286
LOD2 -  593
LOD2 -  219

Human Male/Female Version:
Texture size -  1k (normal 2k)
LOD0 - 1638
LOD1 -  1360
LOD2 -  586
LOD2 -  226

Proof:

Substance Painter Texturing

High poly

Video and photos were recorded on this map:

https://sbox.game/ducksworkshop/workshop_skin_viewer