Upgrade esptool using pip3

To upgrade esptool, enter thte command in Terminal:

$ pip3 install esptool --upgrade

Upgrade esptool on Raspberry Pi

With esptool upgraded to ver 3.3, now ESP32-S3 (also ESP32-C3) can be flashed on Raspberry Pi.

CircuitPython flashed on ESP32-S3 using esptool 3.3 on Raspberry Pi

Related:

~ To install CircuitPython on ESP32-S3 using esptool on Linux.