I would happily pay extra for a phone with an LCD screen. Phone screen burn-in is not a concern I want to have in 2024 ... I think the better way would have been the spring-clip assembly in the cable ...
To know the exact pin mapping you can either open the config_maix_duino.py or the config ... the Maixduino will detect the face from the camera feed in real-time and creates a frame on the preview ...