Fingerprint recognition in Touch ID requires an ARM processor, provided in an Intel Mac by either a T1 or T2 chip, or in an Apple silicon Mac, together with a keyboard with a built–in fingerprint sensor.
Touch ID is a standard feature of MacBook Air and MacBook Pro notebooks with a supporting ARM chip, where the sensor is built into their internal keyboard. Although recent Intel Mac minis and iMacs have T2 chips, according to Apple those models aren’t compatible with its Magic Keyboards equipped with a Touch ID sensor.