None. Microsoft has Copilot in preview mode in Windows and it's not very integrated apart from a chat window. I doubt GNOME/KDE will be able to dedicate enough resources to adding an assistant that is well integrated with the desktop environment any time soon.A search in Fedora yields a single GSoC project[0] limited in scope to NetworkManager and it's not clear if anyone actually is working on that.If the use case you're interested in is actually having the LLM doing things for you in SaaS app...