Latest Facebook 398 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/109.0.5414.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.118 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/108.0.5359.128 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE A2019G Pro Build/PKQ1.181203.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Axon 9 Pro
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/108.0.5359.128 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.118 Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 YK P30
Mozilla/5.0 (Linux; Android 9; Y9Plus Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Y9 Plus
Mozilla/5.0 (Linux; Android 9; Y8 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Y8
Mozilla/5.0 (Linux; Android 9; X7_Soul_Style Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X7 Soul Style
Mozilla/5.0 (Linux; Android 9; X7_Soul_Style Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X7 Soul Style
Mozilla/5.0 (Linux; Android 9; X7_Soul_Pro Build/PKQ1.191023.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X7 Soul Pro
Mozilla/5.0 (Linux; Android 9; X7_Soul_Pro Build/PKQ1.191023.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X7 Soul Pro
Mozilla/5.0 (Linux; Android 9; X2_euro Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/85.0.4183.101 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X2
Mozilla/5.0 (Linux; Android 9; X2-HT Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 One X2
Mozilla/5.0 (Linux; Android 9; X19 S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/97.0.4692.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X19 S
Mozilla/5.0 (Linux; Android 9; X19 S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.117 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 X19 S
Mozilla/5.0 (Linux; Android 9; W-U300 Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 Ride
Mozilla/5.0 (Linux; Android 9; W-P611-EEA Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/109.0.5414.85 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/398.0.0.21.105;] Android 9 View 3 Pro