Should be QtWebEngine now, as QtWebKit is deprecated.
QtWebEngine embeds Chromium as its web engine, which means it is going to have the same performance and disk size costs as Electron. The circle is now complete and you might as well just use Electron.
Agreed except each app won't need a copy of QtWebEngine on disk.
Isn't qt webkit what the infamous pgAdmin 4 used to use?
shivers