> many alternatives to electron do in fact offer markup language like GUI creation and css/html like styling including Qt with its QML offshoot, or JavafX.

> Not to mention that I don't see any obvious reason why HTML would be easier to use than the WPF

Can I use Vue.js or React over QML? That's a point many people miss. You think of HTML/JavaScript as the thing from 10 years ago that maybe you played with in school.

Vue.js/React is to HTML/CSS what WPF is to raw Win32 GUI programming.