I think they're roughly the same in terms of dev experience. Major toolkits have good bindings for dynamic languages like JS and Python so C++ isn't a barrier. I think mostly what happened was Electron's pitch of "turn your web app into a desktop app almost for free" meant that web devs could stick with React rather than learning wx or Qt. There were a lot of web devs and web companies so this meant a lot of Electron apps where once there might have been native apps.