Basically I installed kdevelop, kate and a few others and no app is appearing, only an icon appears on the dock. Reinstalling didn't help and no error messages appear on the terminal to help me debug this.

https://www.reddit.com/r/kde/comments/eb3d55/kde_apps_that_are_compiled_with_craft_on_mac_os/

I ditched craft (I don't know if that is to blame) but installing KDE apps with brew and re-installing and restarting dbus, game functional applications.