Qt Embbedded is a full featured GUI framework and you don't need it. You can just use QtWayland for free and run any GUI apps that targets Wayland (GTK, Qt...).

Qt Embbedded is a full featured GUI framework and you don't need it. You can just use QtWayland for free and run any GUI apps that targets Wayland (GTK, Qt...). One of the most used is probably Tizen, an embedded OS by Samsung for smartwatches (they don't use Google WatchOS) and TVs.