so I got this normal map from a unreal engine 5.x game, and i have no idea how to make it properly work with blender shader nodes

its a screenshot cause its originally a TGA and the filesize too large, its also in its orignal sRBG format. The file is also titles as "NWO", which is something i could not find any info on

I have tried the image non-colour and inverting the green, then though the normal map nodes, all of the options, creates awful flat shading on the mesh

If this requires a mesh in order to work let me know