The rationale is that the programming environment of the Arduino ESP32 S3 board uses a remapping by means of the include file io_pin_remap.h. This file remaps the pins of several core Arduino ...
// A4 and A5 on Arduino Uno not supported due to I2C #define CMD_ANALOG_READ_A0 0b1000 // 0x8 = A0 #define CMD_ANALOG_READ_A15 10111 // 17 = A15 #define CMD_SETUP_ANALOG_INTERNAL 0x10 #define ...