Literally just a webview in an X window.
This is not a 'desktop app'. This is bastardized web.
When it is a chrome over a gigantic web view instead of properly making use of native UI widgets.
> iTunes, the Mac app store
Both good examples on how not to do it, specially on Windows.
Give me a native app that feels native, that looks native, and that is native.
Any included WebView to display content is an instant "nope" criterium, because the WebView content won't be themeable or look or feel native.