Latest Facebook Messenger 233 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; JSN-L21 Build/HONORJSN-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/233.0.0.16.158;] Android 9 Honor 8X
Mozilla/5.0 (Linux; Android 5.1; HUAWEI LYO-L21 Build/HUAWEILYO-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/233.0.0.16.158;] Android 5 Y6 II Compact
Mozilla/5.0 (Linux; Android 5.0; SM-N9005 Build/LRX21V; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/83.0.4103.106 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/233.0.0.16.158;] Android 5 Galaxy Note 3