And now try to get either to work mobile, or in a browser, or at least try to share frontend code between them. That's where electron shines, and all the "classic" frameworks really don't. QtQuick and JavaFX kiiiind of work for at least some platforms, but it's fairly rough all considered, even compared to the inelegant brute force solution of electron.

I'd put my money on the competing "electron, but smarter" solutions that keep bubbling up, rather than any language-centric framework.