Latest Opera 121 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 OPR/121.0.0.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 OPR/121.0.0.0 Mac Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 OPR/121.0.0.0 (Edition Yx GX TR 2) Windows 10 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.7151.122 Safari/537.36 OPR/121.0.5600.38 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.7151.122 Safari/537.36 OPR/121.0.5600.38 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5593.0 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5586.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5593.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5551.0 Windows 10 Unknown
Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5551.0 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5558.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5593.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.7151.122 Safari/537.36 OPR/121.0.5600.38 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.7151.122 Safari/537.36 OPR/121.0.5600.20 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5581.0 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5565.0 Windows 8 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5565.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5593.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5558.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.7049.42 Safari/537.36 OPR/121.0.5581.0 Windows 8 Unknown