Need Help with Unity Passthrough on Alpha Channel

I need some assistance with Unity passthrough. I'm trying to make it work on an alpha channel, and I've found two methods to achieve this: one using shaders and another using what I call a Mesh Projector. From what I understand, passthrough windows and surfaces ignore the mesh renderer and only use the Mesh to project passthrough through the 3D model.

With the shader method, I've encountered several issues. In the editor, effects only appear in the left eye and not the right, and some things that don't work in the editor do work in the Android build. I've noticed a lot of inconsistencies and need some guidance. I've tried various shaders multiple times. I think the selective passthrough is the closest, but it still doesn't handle the alpha, and the passthrough reveal shader doesn't show up in the right eye.

In summary, I want to use a passthrough that has an alpha channel to blend my modeling with real life. Can anyone help me out?