Latest Debian 12 user agents:

User Agent Browser Device
Mozilla/5.0 (X11; U; Linux sparc64; en-US; rv:109.0) Gecko/20100101 IceCat/124.0 (like Firefox/124.0; Debian-12.5.0) IceCat 124 Unknown
Mozilla/5.0 (Debian 12; Mobile; rv:91.0) Gecko/91.0 Firefox/91.0 Firefox Mobile 91 Unknown
Mozilla/5.0 (Debian 12; Mobile; rv:91.0) Gecko/20100101 Firefox/91.0 Firefox Mobile 91 Unknown