It’s 4K for RGB mask textures, there will be 4 of them I think, when I finish UV packaging
I’m using tiling megascan textures, right now they are 4K too, but in the end maybe it will be 2K
First test with sculpting 11mln tris, Blender 2.90.1 is handle it very smooth
Will try to match the refference as much aas possible in the final result