Latest Vivaldi 124 user agents:

User Agent Platform Device
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.2487.157 Safari/537.36 Vivaldi/124.0.2487.157 Windows 10 Unknown
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.2487.157 Safari/537.36 Vivaldi/124.0.2487.15 Windows 10 Unknown