2019 was the year in which we witnessed the disappearance of traditional fingerprint sensors, in favor of those positioned below the display. Of course, there are still several models that use a lateral or rear one, but these solutions are becoming increasingly rare, especially now that even mid-range devices are able to integrate a sensor under the display without too many problems.
Most of these are of the optical type (i.e. based on a high-definition camera that captures a photo of the fingerprint), while Samsung has chosen to rely on Qualcomm's ultrasound technology on its top-of-the-range flagships , leaving the optical ones to be installed on the medium ranges.
However, it seems that the Seoul house is ready to review its decision, at least according to what was reported by some South Korean sources.