where can I find full Schematics for XIAO ESP32S3 to show chip pinout and associated circuit?
It is on the wiki, direct link: https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf
[EDIT]
Sorry I misread as C3, S3 schematic is here: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/res/XIAO_ESP32S3_SCH_v1.1.pdf