Another thing Electron has going for it is better built-in accessibility support, at least on Windows. wx is fine as long as you stick to the wrappers over native widgets; and there are caveats even then (e.g. having to use different wx classes to get a native list view on different platforms). Last time I checked, GTK is still inaccessible with screen readers on Windows and Mac. Qt seems OK; I haven't done a detailed evaluation lately, but I would still bet on Electron coming out ahead, particularly on Windows.
Yes, a11y matters and needs to be attended to for apps where it makes sense. Doesn't make a lot of sense for some things though (e.g. where the main app display is essentially a drawing canvas). Not sure how much better Electron could be in the scenario.
