@maxgerhardt and anyone else coming across this issue, I’ve found a resolution.
Simply put, you need to update your platform in platformio.ini to point to “https://github.com/tasmota/platform-espressif32/releases/download/v2.0.4.1/platform-espressif32-2.0.4.1.zip”
More info here: esp32-s3-devkitc-1 issue · Issue #837 · platformio/platform-espressif32 · GitHub