Latest Vivaldi 6 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 12; Smart TV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.6102.55 Safari/537.36 Vivaldi/6.0.2488.46 Android TV 12 Unknown
Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.85 Safari/537.36 Vivaldi/6.3.6778.85 Fedora Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.6943.99 Safari/537.36 Vivaldi/6.4.6943.99 Mac 13 Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.6998.165 Safari/537.36 Vivaldi/6.5.6998.165 Ubuntu Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/147.0.0.0 Safari/537.36 Vivaldi/6.7.3329.21 Windows 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_6_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.7499.170 Safari/537.36 Vivaldi/6.9.7499.170 Mac 13 Unknown
Mozilla/5.0 (Windows NT 14.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0 Safari/537.36 Vivaldi/6.0.0 Windows NT Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; arm64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/6.0.2979.3 Safari/537.36 Vivaldi/6.0.2979.3 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; arm64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/6.0.2979.18 Safari/537.36 Vivaldi/6.0.2979.18 Windows 10 Unknown
Mozilla/5.0 (X11; CrOS x86_64 15983.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.6613.84 Safari/537.36 Vivaldi/6.2.6613.84 Chrome OS 15983 Unknown
Mozilla/5.0 (X11; Ubuntu; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.7390.65 Safari/537.36 Vivaldi/6.8.7390.65 Ubuntu Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.264 Safari/537.36 Vivaldi/6.3.6778.264 Windows 10 Unknown
Mozilla/5.0 (X11; Manjaro; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6778.139 Safari/537.36 Vivaldi/6.3.6778.139 GNU/Linux Unknown
Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.6943.84 Safari/537.36 Vivaldi/6.9.3447.54 Windows NT Unknown
Mozilla/5.0 (AIX) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.6202.66 Safari/537.36 Vivaldi/6.3.3154.56 AIX Unknown
Mozilla/5.0 (X11; Java ME; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6770.126 Safari/537.36 Vivaldi/6.7.2402.76 GNU/Linux Unknown
Mozilla/5.0 (X11; palmOS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.6476.139 Safari/537.36 Vivaldi/6.3.2558.75 palmOS Unknown
Mozilla/5.0 (X11; Kali; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.6664.51 Safari/537.36 Vivaldi/6.4.2480.63 GNU/Linux Unknown
Mozilla/5.0 (X11; CrOS x86_64 15258.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.6723.69 Safari/537.36 Vivaldi/6.3.6723.69 Chrome OS 15258 Unknown
Mozilla/5.0 (X11; Manjaro; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.7499.109 Safari/537.36 Vivaldi/6.9.7499.109 GNU/Linux Unknown