how to make unity URP 2D block light completely and do not(create a shadow&let any light pass over)

I asked a similar question but I finally know what effect I am looking for in lighting term. I just want light

• get completely blocked with no light pass behind obstacles
• with soft edges

Before I tried unity2d lighting and encounter this problem, I tried mesh but cant seems to make feathering on mesh's edge, other than the question in the title, I would like to know if there are any way to do feathering on mesh's edge too.(in last version with the mesh, the mesh is a changing view cone with stencil rendering only showing the view cone)