ZTE's CEO, Ni Fei, has confirmed that his company will bring the next generation of its under-display camera to the upcoming MWC Shanghai event. This technology, which features in the OEM's Axon 20 5G, enables a selfie shooter to completely conceal itself underneath the display. Its upgraded form might allow for enhanced functionality, Face Unlock included.
https://www.notebookcheck.net/ZTE-will-launch-its-second-gen-under-display-camera-at-MWC-Shanghai-2021.523148.0.html