While the tech giant has several apps and projects on Linux, Microsoft has not released an official Copilot app for Linux. Instead, you could install the unofficial Copilot app for Linux built by Hayden Barnes. The app opens the Copilot web app in a dedicated GTK window and keeps your login session safely on disk. The unofficial Copilot app for Linux is new, so we'll have to use it for a while to determine its long-term stability and performance. We have a few systems running Linux spread across our team, so we'll let you know how the unofficial Copilot app performs over time.