Someone drilled some holes temperatures from all sensors drop and the fan speed dropped 45%. If you know how to adjust TDP the FL12 may be capable of 25W sustained
The input cover has a protective barrier on the underside of the keyboard pcb, so it’s sealed tight. The way the bottom cover is designed and molded, the only way any air is being drawn in by the fan is via the intake in the rear.
Edit: There’s a very slight gap between the sheet metal backing of the keyboard and the input cover, so I’m sure there’s some air being drawn in through there, but it would have to be next to nothing. I’m guessing there’s also a silicone membrane sheet under the keys, so no air is going to be flowing between the keys.