@rs0087, If you used the phones original front cameras + flexes, just replacing the screen, then yes; The FaceID should work.
I’d start by opening it up again, then disconnecting battery (always battery first) followed by the screen assembly. Inspect all connectors and flexes under high magnification for damage. If there’s no sign of damage, reassemble the screen assembly making absolutely sure every connector is married up properly. Finally replugging the battery, but before gluing the phone up again, test it for functionality, ie the FaceID.