Notable changes:
- Tracking improvements. For example, if you use the launcher to launch an application and then switch workspaces, it will still launch in the workspace you opened it from;
- Supported the ext-session-lock protocol, which authenticates the user and informs the compositor when the session should be unlocked
- XDG activation and DBus activation support
- work on HDR
- Ongoing work to package COSMIC on NixOS: tracking issue
Iirc Gradience punches a hole in the flatpak sandbox for xdg-config/gtk-4.0, which usually is in .config. This makes it work and isn’t a security problem.
Gnome Shell is unaffected because it doesn’t use GTK.
What does it use then?