I haven't seen many examples of people using Electron to make applications that really should be web apps instead, but more for packaging web apps with native enhancements. Often I'd prefer a "proper" native app, pushing even more features in the browser IHMO is not the answer.

Ctrl+S -> Save whole webpage

alternatively get the Webpages source code.

There is. The major OSs provide APIs to access the platform browser. The downside is you need a platform specific shim to set this up using native code. So, developers need to step outside of their JS worldview for a few days to avoid that 200mb app size penalty.

If you are building a platform agnostic app then I understand the value of Electron to avoid that work across each platform. But, it seems several of those Electron apps aren't even platform agnostic, so why not build the platform specific shim and be a better citizen on my hardware.

edit: I'm daft