We want to create a 3D web and desktop(Windows and macOS) application with a lot of functionalities. This is a 3D furniture customization application in which we give options to add, delete, scale, move, rotate objects. Something like a floor planner. We are also going to add AR and VR.

I am thinking about using Electron or Unity. Please recommend what should I choose for this purpose. Please consider that we have to develop for web and desktop (windows and mac) all platforms.