Projecting a skybox through "windows" without using a skybox on the camera?

I am trying to create an AR experience that would procedurally generate walls in a room to set mood and decor, in many cases these walls would not touch. So using the standard skybox would not work.

Unreal used to, and may still, have the ability to flag a face of an object and choose skybox. Your skybox would be projected onto that specific face.

Any ideas here would be great. Thanks

Figured It out, Render Texture was my solution.