* Oh, is that something that gets initiated by pin configs, or could it be, that it just didn't get the necessary firmware where I bought it, so that I have to follow along these steps:
https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-guides/dfu.html
"The ESP32-S3 chip needs to be in bootloader mode before it can be detected as a DFU device and flash. This can be achieved by pulling GPIO0 down (e.g., pressing the BOOT button), pulling RESET down for a moment, and releasing GPIO0."
hm..