Latest Vivaldi 8 user agents:

User Agent Platform Device
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.7697.108 Safari/537.36 Vivaldi/8.3.3374.127 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7788.30 Safari/537.36 Vivaldi/8.2.3411.20 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Vivaldi/8.7.3075.176 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36 Vivaldi/8.8.3008.153 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36 Vivaldi/8.8.3430.88 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7670.201 Safari/537.36 Vivaldi/8.3.3361.136 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7639.0 Safari/537.36 Vivaldi/8.2.3419.159 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7622.170 Safari/537.36 Vivaldi/8.1.3018.76 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.7796.169 Safari/537.36 Vivaldi/8.3.3128.187 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.7722.54 Safari/537.36 Vivaldi/8.7.3254.62 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.7655.220 Safari/537.36 Vivaldi/8.2.3497.166 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7755.100 Safari/537.36 Vivaldi/8.9.3266.91 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.7252.192 Safari/537.36 Vivaldi/8.4.3154.187 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.7707.38 Safari/537.36 Vivaldi/8.5.3363.77 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7601.211 Safari/537.36 Vivaldi/8.9.3145.47 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.7764.158 Safari/537.36 Vivaldi/8.9.3345.171 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.7665.100 Safari/537.36 Vivaldi/8.0.3383.158 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.7639.176 Safari/537.36 Vivaldi/8.9.3012.51 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.7728.98 Safari/537.36 Vivaldi/8.6.3422.18 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.7334.0 Safari/537.36 Vivaldi/8.5.3331.174 Mac 10 Unknown