Well it’s require reverse engineer them,but knowing Facebook don’t expect anything good.

How awful are modern phone looks, missing old times before iPhone X and small sizes.

U need universal android debloater it works via adb and u can delete apps temporarily until factory reset,u can also delete a lot other Chinese spyware like msa daemon which sending tons of data from your phone.https://github.com/0x192/universal-android-debloater And yeah this apps always come preinstalled with any xiaomi phone for Facebook surveillance :)

Happened to me too, i signed out and login again.