Thanks! While I may have nailed server-side decorations in that example, as you know, there is too much other stuff to take into account to make a DE actually functional. So, I respect a lot what KDE and GNOME do and the innovations they make. I actually want to create a macOS clone, hahaha. That is one of the reasons I started this project. I will soon continue working on a library for exposing global menus in Wayland/X11. Qt allows defining a custom platform plugin, enabling us to plug external systems for managing global menus. Sadly, I think GTK4 no longer supports that, so I believe an approach would be to display a standard menu with basic functions for apps that don’t support it.