They should have adopted Qt; it makes it easy to write native C++ code that compiles on different platforms, so you get the performance and RAM usage of C++ but still most of the benefits that web coding offers, without so many drawbacks. (It's also quite nice to work with IMO.)

It's too bad it wasn't more universally adopted, by any of the 3 major platforms (including Linux, where the all-C Gtk+ has become the standard for the most part). Instead, it seems to have found its greatest success in, ironically, small embedded devices. Devices like this simply cannot take the performance hit of something like Electron.