Latest Facebook 397 user agents:

User Agent	Platform	Device
Dalvik/2.1.0 (Linux; U; Android 12; JLN-LX1 Build/HUAWEIJLN-LX1) [FBAN/FB4A;FBAV/397.0.0.23.404;FBPN/com.facebook.katana;FBLC/fr_NE;FBBV/436604014;FBCR/MOOV AFRICA BJ;FBMF/HUAWEI;FBBD/HUAWEI;FBDV/JLN-LX1;FBSV/12;FBCA/arm64-v8a:null;FBDM/{density=3.375,width=1080,height=2282};FB_FW/1;FBRV/439096274;] FBBK/1	Android 12	Nova 9 SE