Citizen Version:
Texture size - 2k
LOD0 - 3636
LOD1 -  2986
LOD2 -  957
LOD2 -  302

Human Male/Female Version:
Texture size -  2k
LOD0 - 3636
LOD1 -  3020
LOD2 -  925
LOD2 -  334

Proof:

Substance Painter Texturing

High poly

Some Video were recorded on this map:

https://sbox.game/ducksworkshop/workshop_skin_viewer