Latest Facebook 340 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/111.0.5563.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A5 2019 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Blade A5 (2019)
Mozilla/5.0 (Linux; Android 9; ZTE Blade A3 Lite Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.104 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Blade A3 Lite
Mozilla/5.0 (Linux; Android 9; ZTE Blade A3 Lite Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/105.0.5195.79 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Blade A3 Lite
Mozilla/5.0 (Linux; Android 9; WP5 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 WP5
Mozilla/5.0 (Linux; Android 9; W-K510-EEA Build/PPR1.181008.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Y60
Mozilla/5.0 (Linux; Android 9; VS988 Build/PKQ1.190522.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.80 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 G6
Mozilla/5.0 (Linux; Android 9; vivo Z1 Build/PKQ1.180819.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/68.0.3440.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Z1
Mozilla/5.0 (Linux; Android 9; vivo 2010 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 2010
Mozilla/5.0 (Linux; Android 9; vivo 1921 Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.87 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 U20
Mozilla/5.0 (Linux; Android 9; vivo 1916 Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/92.0.4515.115 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 U10
Mozilla/5.0 (Linux; Android 9; vivo 1916 Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/87.0.4280.141 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 U10
Mozilla/5.0 (Linux; Android 9; Vankyo_S10_EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 MatrixPad S10
Mozilla/5.0 (Linux; Android 9; V1913A Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/117.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Y7s
Mozilla/5.0 (Linux; Android 9; Ulefone_S11 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 S11
Mozilla/5.0 (Linux; Android 9; U307AS Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/103.0.5060.71 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Life 2
Mozilla/5.0 (Linux; Android 9; U304AA Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Radiant Core
Mozilla/5.0 (Linux; Android 9; TECNO CC7 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Camon 12
Mozilla/5.0 (Linux; Android 9; TECNO CC6 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/95.0.4638.50 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Camon 12 Air
Mozilla/5.0 (Linux; Android 9; SM-N950F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/340.0.0.27.113;] Android 9 Galaxy Note 8