Sharp is dumb.
Is the rear fingerprint reader deemed inferior by most consumers? I've always felt it was the muuuuch better placement yet companies have spent how much r&d money on in-display fingerprint readers instead of just putting it on the rear. Even the Xperia XZ4 leaks appear to have moved it to an in-display one.
I rmemeber a recent Porsche design Huawei had a rear and front in screen fp sensor.
Give the option for both