Latest Facebook Messenger 398 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; Y9Plus Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 9 Y9 Plus
Mozilla/5.0 (Linux; Android 9; vivo 1921 Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.45 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 9 U20
Mozilla/5.0 (Linux; Android 9; SM-J701F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/101.0.4951.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 9 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 9; SM-A530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.65 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 Galaxy A8
Mozilla/5.0 (Linux; Android 9; POT-LX1 Build/HUAWEIPOT-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 P smart (2019)
Mozilla/5.0 (Linux; Android 9; Plume L6 Pro Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/101.0.4951.61 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 Plume L6 Pro
Mozilla/5.0 (Linux; Android 9; Nokia C1 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 C1
Mozilla/5.0 (Linux; Android 9; JKM-LX2 Build/HUAWEIJKM-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/111.0.5563.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 Y9 (2019)
Mozilla/5.0 (Linux; Android 9; BV5500Pro Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 BV5500 Pro
Mozilla/5.0 (Linux; Android 9; BUZZ 2 Plus Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 9 Buzz 2 Plus
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1820 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 8 Y91i
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1820 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/96.0.4664.104 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 8 Y91i
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1811 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.65 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 8 Y91
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1811 Build/OPM1.171019.026; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.154 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Y91
Mozilla/5.0 (Linux; Android 8.1.0; vivo 1801 Build/OPM1.171019.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Y71i
Mozilla/5.0 (Linux; Android 8.1.0; SM-G610F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Galaxy J7 Prime
Mozilla/5.0 (Linux; Android 8.1.0; SM-A260G Build/OPR6; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.110 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Galaxy A2 Core
Mozilla/5.0 (Linux; Android 8.1.0; Redmi 6A Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.0.0.11.69;] Android 8 Redmi 6A
Mozilla/5.0 (Linux; Android 8.1.0; NX609J Build/OPM1.171019.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Red Magic
Mozilla/5.0 (Linux; Android 8.1.0; MAGNO C Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/110.0.5481.153 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/398.1.0.11.69;] Android 8 Magno C