Fleetd is not officially documented or tested for OSTree-based operating systems like Fedora Silverblue. The supported Linux distributions for fleetd are traditional package-managed systems such as CentOS, Ubuntu, Fedora (Workstation/Server), Amazon Linux, Debian, RHEL, openSUSE, and Arch Linux, as listed in the
FAQ.
You could try running fleetd in a podman container, but this is not officially supported or tested, and may not provide full functionality (e.g., hardware inventory, system-level queries).