Earlier quoted context omitted.
All of those are examples of overbloated, slow, horrible user experience apps.
Does their market share back up your take of them as horrible apps? Are there QT or GTK competitors crushing them? I always hear how terrible electron apps are, but the companies picking electron seem to get traction QT or other apps don't and seem to have a good cross platform story as well.
One that comes to mind that I use daily and noticed only recently that it was implemented in Qt is the telegram desktop app.