Latest Vivaldi 6 user agents:

User Agent Platform Device
Mozilla/5.0 (Macintosh; Intel Mac OS X 15_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Vivaldi/6.4 Mac 15 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 Vivaldi/6.0.0 Windows 10 Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36 Vivaldi/6.0.0.0 GNU/Linux Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Vivaldi/6.93.759.91 Windows 10 Unknown
Mozilla/5.0 (Windows NT 6.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Vivaldi/6.0 Windows Vista Unknown
Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 Vivaldi/6.0 Windows NT Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Vivaldi/6.8 Mac 14 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Vivaldi/6.74.864 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 14) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Vivaldi/6.0.0.0 Mac Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 Vivaldi/6.9.0 Windows 10 Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 Vivaldi/6.47.255 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 Vivaldi/6.5.0.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 Vivaldi/6.7.3329.35 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Vivaldi/6.1.0.0 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Vivaldi/6.9 Mac 12 Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 Vivaldi/6.72.065 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Vivaldi/6.8.3381 GNU/Linux Unknown
Mozilla/5.0 (X11; Azure Linux; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6216.109 Safari/537.36 Vivaldi/6.3.2411.24 GNU/Linux Unknown
Mozilla/5.0 (Windows Phone 10.0; Android 6.0.1; Microsoft; Lumia 950) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.6651.176 Mobile Safari/537.36 Vivaldi/6.3.2980.30 Windows Phone 10 Lumia 950
Mozilla/5.0 (Linux; Android 14; Mobile) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6835.79 Mobile Safari/537.36 Vivaldi/6.3.2111.57 Android 14 Unknown