Was thinking what GitHub does to preview STLs. I'm assuming WebGL with glTF exported... Meaning am ElectronJS app in transparent mode code render a 3D thing like a part to be 3D printed.
Yes! Some desktop 'widgets' that show 3d content from various forms.
I wouldn't go as far as fsv[1] but some basic in-environment vis is called for.
Yeah, sure, definitely FreeCAD. OpenCASCADE failing to make fillets, blocking the main thread with long operations and crashing the entire application is exactly what I always wanted to see in VR!