Might be a dumb question here but is there a website that has the ESP32 programming documentation for various functions and calls?
For the Arduino IDE there isn’t, as far as I know. You can check the esp32-arduino repository: https://github.com/espressif/arduino-esp32
There’s the documentation for ESP-IDF (the functions can be used with Arduino IDE): https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/
I hope this helps.