If you were looking for a way to set up realistic-looking grass, here's an informative learning material that might help to achieve your goal. Material Artist at Rebellion Joe Taylor shared a new comprehensive breakdown, explaining how to set up an amazing grass material using Unreal Engine 5 and Substance 3D Designer.
In this breakdown, the artist showed how to set up wind effects, reactive foliage, and color variation per instance, demonstrated how to work with world space and distance blending, explained how to generate procedural clusters for the textures using Substance 3D Designer, and more. You can check out the full breakdown by clicking this link.