MarsSeed [1] filed a deletion request for teams-insiders [2]: Unneeded, dead package for the former development (unstable) version of Microsoft Teams. Source has been deleted (404). Microsoft has discontinued its official Teams native desktop application for Linux. There won't be any new stable or unstable releases. They offer their web application for Linux users. AUR has a desktop-nativefied version of that: https://aur.archlinux.org/packages/teams-nativefier There is also an unofficial, Electron-based client for Linux: https://aur.archlinux.org/packages/teams-for-linux https://aur.archlinux.org/packages/teams-for-linux-git AUR still has the latest stable version of Microsoft's native client: https://aur.archlinux.org/packages/teams [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/teams-insiders/