Only if using DOM right? If someone ported a WebGL game to Electron the same 3D engine would be at play. Or 2D canvas for that matter. I think you're specifical

Only if using DOM right? If someone ported a WebGL game to Electron the same 3D engine would be at play. Or 2D canvas for that matter. I think you're specifically referring to the overhead of browser DOM and how elements therein load, focus, apply styling, etc.