What would be a great feature for Qt is to have a way to make the GUI with QML but implement your actual work in C#,python,Java. So you would need a way to connect the GUI with data types and functions from this languages.
I remember Qt company tried at one point to offer Java,C#, Python official bindings but that effort failed, is probably hard.
Maybe an alternative to electron would be a JVM based modern GUI framework, something maybe inspired from the best parts of WPF, MXML and QML. And I am thinking JVM because you have access to Java's big standard library to do desktop like things like file,network IO and also have access to the native OS if needed.