I have added esp32 devKitC successfully to my IoT things and it works fine but it gives me warning that it is not supported
WARNING: library arduinoiotcloud_1_6_1 claims to run on mbed, samd, esp8266, mbed_nano, mbed_portenta, mbed_nicla architecture(s) and may be incompatible with your current board which runs on esp32 architecture(s).
Sketch uses 931922 bytes (71%) of program storage space. Maximum is 1310720 bytes.
Global variables use 40224 bytes (12%) of dynamic memory, leaving 287456 bytes for local variables. Maximum is 327680 bytes.
/home/builder/opt/libraries/latest/arduinoiotcloud_1_6_1/src/property/Property.cpp:25:19: note: #pragma message: No RTC available on this architecture - ArduinoIoTCloud will not keep track of local change timestamps .
#pragma message "No RTC available on this architecture - ArduinoIoTCloud will not keep track of local change timestamps ."
^
Looks like someone forgot to add it to the list?