Activate verbose output by executing pio settings set force_verbose Yes and re-upload. You should see the avrdude command and the used config file. Activate verbosity in the Arduino IDE to see what config file it uses. Compare the two.
Activate verbose output by executing pio settings set force_verbose Yes and re-upload. You should see the avrdude command and the used config file. Activate verbosity in the Arduino IDE to see what config file it uses. Compare the two.