Latest Vivo Y21 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.160 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/564.0.0.48.74;IABMV/1;]	Facebook 564	Android 12
[FBAN/FB4A;FBAV/565.0.0.49.74;FBBV/992346784;FBDM/{density=1.875,width=720,height=1475};FBLC/en_US;FBRV/997576570;FBCR/Jazz;FBMF/vivo;FBBD/vivo;FBPN/com.facebook.katana;FBDV/V2111;FBSV/12;FBBK/1;FBOP/1;FBCA/arm64-v8a:;]	Facebook 565	Android 12
Mozilla/5.0 (Linux; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/19.0 Chrome/102.0.5005.125 Mobile Safari/537.36	Samsung Browser 19	Android 12
[FBAN/FB4A;FBAV/564.0.0.48.74;FBBV/986612236;FBDM/{density=1.875,width=720,height=1475};FBLC/tr_TR;FBRV/994931293;FBCR/Turkcell;FBMF/vivo;FBBD/vivo;FBPN/com.facebook.katana;FBDV/V2111;FBSV/12;FBOP/1;FBCA/arm64-v8a:;]	Facebook 564	Android 12
Instagram 427.0.0.47.73 Android (31/12; 270dpi; 720x1600; vivo; V2111; 2111; mt6765; en_US; 954603195)	Instagram 427	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.178 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/563.1.0.50.73;IABMV/1;]	Facebook 563	Android 12
Mozilla/5.0 (Linux; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/123.0.6312.118 Mobile Safari/537.36 VivoBrowser/13.5.2.0	vivo Browser 13	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003_NONFC) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.7778.178 Mobile Safari/537.36	Chrome Mobile 148	Android 12
Mozilla/5.0 (Linux; U; Android 12; V2111 Build/SP1A.210812.003_NONFC; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.178 Mobile Safari/537.36 OPR/92.0.2254.77878	Opera Mobile 92	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.178 Mobile Safari/537.36	Chrome Webview 148	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; xx-xx) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.179 Mobile Safari/537.36/vivo AppShellVer:2.4.74 UUID/16aa46bb-cb23-3250-ac8f-af374bc70411	Chrome Webview 148	Android 12
Mozilla/5.0 (Linux; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/131.0.6778.200 Mobile Safari/537.36 VivoBrowser/16.0.0.2	vivo Browser 16	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.120 Mobile Safari/537.36	Chrome Webview 148	Android 12
Mozilla/5.0 (Linux; arm_64; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.7103.100 YaBrowser/25.6.1.100.00 SA/3 Mobile Safari/537.36	Yandex Browser 25	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003_NONFC) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.175 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/562.0.0.51.73;IABMV/1;]	Facebook 562	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.160 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/561.0.0.3.67;]	Facebook 561	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.121 Mobile Safari/537.36	Chrome Webview 148	Android 12
Mozilla/5.0 (Linux; Android 12; V2111 Build/SP1A.210812.003) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/148.0.7778.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/561.0.0.42.67;IABMV/1;]	Facebook 561	Android 12
Mozilla/5.0 (Linux; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/123.0.6312.118 Mobile Safari/537.36 VivoBrowser/10.8.3.3	vivo Browser 10	Android 12
Mozilla/5.0 (Linux; Android 12; V2111) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/123.0.6312.118 Mobile Safari/537.36 VivoBrowser/15.0.2.3	vivo Browser 15	Android 12