I know that this is a well known feature from recent Arduino versions. I any case, when I compile and upload a very simple code to my Arduino-like board with an ESP32 microcontroller using the Arduino IDE, the Output message just stands like this : “Leaving… Hard resetting via RTS pin…” and nothing ele happens. None of the code sketches that I uploaded has had any kind of effect on the leds of the board

I searched for this site to be sure that this output message is rather a fetaure (and not a bug) :

https://electronicsinnovation.com/hard-resetting-via-rts-pin-fixed-explained/

Still, the leds of the board don’t blink after I upload the Blink sketch