Latest Facebook Messenger 408 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; Lenovo L39051 Build/PKQ1.190616.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.132 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 9 K10 Plus
Mozilla/5.0 (Linux; Android 9; BUZZ 2 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 9 Buzz 2
Mozilla/5.0 (Linux; Android 8.1.0; W-K130-TMV Build/OPM2.171019.012; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/94.0.4606.71 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 8 Sunny 4
Mozilla/5.0 (Linux; Android 8.1.0; Plume L3 Plus Build/OPM1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.132 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 8 Plume L3 Plus
Mozilla/5.0 (Linux; Android 6.0; iris50 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/105.0.5195.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 6 Iris 50
Mozilla/5.0 (Linux; Android 13; SM-N986B Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 13 Galaxy Note 20 Ultra 5G
Mozilla/5.0 (Linux; Android 13; SM-A137F Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.131 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 13 Galaxy A13
Mozilla/5.0 (Linux; Android 13; 23028RN4DG Build/TP1A.220624.014; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 13 Redmi A2
Mozilla/5.0 (Linux; Android 12; WP20 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.131 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 WP20
Mozilla/5.0 (Linux; Android 12; V2147 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/91.0.4472.114 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Y15c
Mozilla/5.0 (Linux; Android 12; V2022 Build/SP1A.210812.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.77 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 V20 SE
Mozilla/5.0 (Linux; Android 12; T676H Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/103.0.5060.129 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 30
Mozilla/5.0 (Linux; Android 12; SM-M317F Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.132 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Galaxy M31s
Mozilla/5.0 (Linux; Android 12; SM-M045F Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.132 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Galaxy M04
Mozilla/5.0 (Linux; Android 12; SM-G970U Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Galaxy S10e
Mozilla/5.0 (Linux; Android 12; SM-A137F Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/112.0.5615.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Galaxy A13
Mozilla/5.0 (Linux; Android 12; SM-A045F Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.88 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Galaxy A04
Mozilla/5.0 (Linux; Android 12; moto g play - 2023 Build/S3SGS32.39-83-1-2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Moto G Play (2023)
Mozilla/5.0 (Linux; Android 12; M2101K6G Build/SKQ1.210908.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Redmi Note 10 Pro
Mozilla/5.0 (Linux; Android 12; Infinix X6515 Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/113.0.5672.76 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/408.1.0.16.113;] Android 12 Smart 7