Latest Fedora 42 user agents:

User Agent Browser Device
Mozilla/5.0 (X11; U; KVM-QEMU 10.2; Linux 6.19; x86_64; en-US; rv149.0) Gecko/20100101 Fedora/42 () Firefox/149.0) Firefox 149 Unknown
libdnf (Fedora Linux 42; xfce; Linux.aarch64) Unknown Unknown
libdnf (Fedora Linux 42; workstation; Linux.x86_64) Unknown Unknown
libdnf (Fedora Linux 42; kde; Linux.x86_64) Unknown Unknown