@imwhocodes -
It looks like you are using the ESP32 reference manual with the ESP32-S3.
Is it correct?

There is a code for it in
https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/HardwareSerial.cpp#L380-L400
https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/esp32-hal-uart.c#L690-L747

Last time I tried it with ESP32-S3, it worked fine.

You can try this Arduino code:

   // this will start UART in 9600 baud and then it will try to adjuts itself to the transmiter baud rate
   // if it can't detect the transmiter baudrate, it will issue a log error message. Turn on Log to Error Level in the IDE.
   Serial.begin(0);

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