To bear clear, Blender is not an Electron app (reading my comment again it could be read as such I guess). Blender is a native application sitting directly on the operating system's 3D API and window system (with the UI being rendered through the 3D API, not through operating system widgets).
The WebGL API is sadly two decades behind state-of-the-art for modern rendering, and even the will-be-ready-for-adoption-any-day-now WebGPU spec is ~5 years behind.
Between that and the overhead of running the whole thing in WASM+Javascript, I don't think we'll see a pro-level DCC tool running on the web anytime soon.
