Think of all that lovely data and tracking you can slurp up when unconstrained by the browser sandbox.

A few advantages.

1. You can make app specific notifications.

2. You can stop worrying about security since you just lock the electron version

3. The user thinks it is an actual app and that this is better.

Example with Discord (a website and an electron app): You have to download the desktop app to have stuff like: game activity (show others what game you are playing), global hotkeys for stuff like muting microphone, local Krisp noise cancellation