Pray tell me why a desktop app is running on a browser in the age of LLMs?

Electron was written to make dev times faster

But since LLMs are basically super engineers can't the app be written in native language rather than running on v8?

Maybe not rust. But then zed people did develop a cross platform library for apps didn't they?!

Tauri is a good balance. Rust "backend" plus a native web view, so less JS and a lighter binary.