Blender 4.02
Create a Terrain (3) : bake diffuse & normal map for terrian

00:00 add colorramp, noise texture, voronoi texture texture coordinate, mapping and adjust value
01:35 one set connect to normal, another connect to color
01:45 adjust
04:00 bake
04:45 result

※normal effect connet:
1.diffuse(any texture node)+bump node
2.normal map(image texture node)+normal map node
3."colorramp node" can control color performance