In WiFiS3 library `WiFi.macAddress` returns the bytes of the MAC address in reversed order as WiFi, WiFi101 and WiFiNINA do for no good reason too. But WiFi.BSSID() returns the normal ordering of MAC address bytes for WiFiS3, but WiFi101 and WiFiNINA have this reversed too. Ethernet library and esp8266 and esp32 WiFi library return normal ordering.