Unity Shader Graph Basics (Part 11 - Terrains)
Shader Graph doesn't support terrains (yet), but you can still sample the terrain control and splat textures to do terrain layering yourself.
Six Grass Rendering Techniques in Unity
Problems can often be solved in several ways. We can draw grass with basic meshes, geometry shaders, procedural rendering, billboards, terrains, and impostors.
MGS4 Octocamo in Shader Graph and URP
The Metal Gear Solid series uses camouflage mechanics to add to the stealth action. You can mimic the Octocamo mechanic by detecting which texture is being used on nearby objects.