Latest Facebook Messenger 350 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; W-V800-TVM Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 View 3 Lite
Mozilla/5.0 (Linux; Android 9; vivo 1916 Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 U10
Mozilla/5.0 (Linux; Android 9; VFD 630 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Smart N10
Mozilla/5.0 (Linux; Android 9; STF-L09 Build/HUAWEISTF-L09; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Honor 9
Mozilla/5.0 (Linux; Android 9; SNE-LX1 Build/HUAWEISNE-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Mate 20 Lite
Mozilla/5.0 (Linux; Android 9; SM-J701F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 9; SM-J530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 9; RMX1805 Build/PKQ1.190319.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 2
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Redmi Note 7
Mozilla/5.0 (Linux; Android 9; Redmi Note 5 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Redmi Note 5
Mozilla/5.0 (Linux; Android 9; JKM-LX2 Build/HUAWEIJKM-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 Y9 (2019)
Mozilla/5.0 (Linux; Android 9; ASUS_X00TDB Build/PKQ1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 9 ZenFone Max Pro M1
Mozilla/5.0 (Linux; Android 9; Acer Chromebook R13 (CB5-312T) Build/R98-14388.61.0; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Chrome OS 14388 Chromebook R13
Mozilla/5.0 (Linux; Android 8.1.0; SM-J530F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 8.1.0; SM-J530F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/98.0.4758.101 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 8.1.0; Redmi 5 Plus Build/OPM1.171019.019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 Redmi 5 Plus
Mozilla/5.0 (Linux; Android 8.1.0; Moto G (5S) Plus Build/OPS28.65-36-14; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 Moto G5s Plus
Mozilla/5.0 (Linux; Android 8.1.0; CPH1909 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 A5S
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX1A Build/HUAWEIWAS-LX1A; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.58 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 8.0.0; SM-G930F Build/R16NW; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/99.0.4844.73 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/350.1.0.9.89;] Android 8 Galaxy S7