To be fair, how many developers are even writing GTK applications anymore? How many GUI apps are even using these native GUI frameworks?
If you aren't developing a DAW, a browser, or some other performance critical GUI app, you're moving to Electron and other layout engine solutions. And who should blame you, people don't want to fiddle with GTK_Window_Context_Handler* gtk_wdw_ctx_hdlr_ptr = Init_GTK_Window_Context_Handler(Window_Context* w_ctx); just to make a damn app.
Even if Vala drops in to save us all from noodling with Window Context Rocket Ship Handlers, layout engines are more portable solutions. The decline of WPF and Winforms is proof of this.
If you aren't developing a DAW, a browser, or some other performance critical GUI app, you're moving to Electron and other layout engine solutions. And who should blame you, people don't want to fiddle with GTK_Window_Context_Handler* gtk_wdw_ctx_hdlr_ptr = Init_GTK_Window_Context_Handler(Window_Context* w_ctx); just to make a damn app.
Even if Vala drops in to save us all from noodling with Window Context Rocket Ship Handlers, layout engines are more portable solutions. The decline of WPF and Winforms is proof of this.