So Linux/GNU is a great dev environment and Electron is the standard for building apps.

Tell me how exactly you think this means Windows is a healthy platform?

Hmm, I guess you must mean that the native Windows development environment (i.e. .NET/Windows App SDK) isn't very developer friendly; I'm afraid I don't have any idea or how to compare it to Swift or Cocoa. As a user, though, I have better access to software and tools than ever before!

I'd argue that the quality of software on Windows specifically has decreased significantly since the rise of Electron.

Electron is a steaming pile of garbage and I wish it a swift and sudden death.

Electron "apps" aren't apps. They are glorified webpages.