Latest Facebook 334 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.62 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE A2019G Pro Build/PKQ1.200415.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.62 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Axon 9 Pro
Mozilla/5.0 (Linux; Android 9; XQ-AD52 Build/57.0.A.2.291; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Xperia L4
Mozilla/5.0 (Linux; Android 9; XQ-AD52 Build/57.0.A.2.291; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Xperia L4
Mozilla/5.0 (Linux; Android 9; X19 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.62 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 X19
Mozilla/5.0 (Linux; Android 9; X19 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 X19
Mozilla/5.0 (Linux; Android 9; W109 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 W109
Mozilla/5.0 (Linux; Android 9; W-V800-EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.62 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 View 3 Lite
Mozilla/5.0 (Linux; Android 9; W-V800-EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 View 3 Lite
Mozilla/5.0 (Linux; Android 9; W-V720-EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Y80
Mozilla/5.0 (Linux; Android 9; W-V720-EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.159 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Y80
Mozilla/5.0 (Linux; Android 9; W-K510-EEA Build/PPR1.181008.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Y60
Mozilla/5.0 (Linux; Android 9; vivo 1916 Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 U10
Mozilla/5.0 (Linux; Android 9; VIEW 1 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 View 1
Mozilla/5.0 (Linux; Android 9; VFD 730 Build/PKQ1.190407.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Smart V10
Mozilla/5.0 (Linux; Android 9; V1930A Build/PKQ1.190616.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/97.0.4692.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Y3 Standard
Mozilla/5.0 (Linux; Android 9; UMIDIGI X Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.120 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 X
Mozilla/5.0 (Linux; Android 9; U307AS Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Life 2
Mozilla/5.0 (Linux; Android 9; TECNO CB7 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.166 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 Camon i4
Mozilla/5.0 (Linux; Android 9; TBBVNC100005208 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Safari/537.36 [FB_IAB/FB4A;FBAV/334.0.0.32.119;] Android 9 TBBVNC100005208