Is it possible to fullscreen mode 'scale outer' with a 3D layer (it acts like scale inner)

I'm trying to use 3D in a project, and I discovered that the 3D layer acts like if the projects fullscreen mode was 'scale inner' instead of the chosen 'scale outer', breaking the presentation of the game (2D layer fixes it but breaks the mesh's appearance).

Couldn't find anything in the documention of the 3D camera/google, is this a limitation or bug to report? Would appreciate any help to try and resolve this.