Which is unfortunate, because most apps don't have a lot of business logic to them. Most time is spent learning the interface and libraries...it might as well

Which is unfortunate, because most apps don't have a lot of business logic to them. Most time is spent learning the interface and libraries...it might as well be a different language or something better suited to task at hand. For a crud app I'd generally grab for Qt, for a multimedia app or game I'd grab for SDL. I guess with something like React there's even more overlap in UI and application flow, but you still have to learn interacting with the filesystem, dialogs, preferences, menus, menu icons and window settings, state between launches, and any other fiddly things that your app brushes up against. There's also building and packaging, bundling for the app store (if you're using one), and updating the app.