It clearly appears to be working on your end. That is exactly the output I'm trying to produce. I double pressed the reset button before uploading. My Nano appears in the comm ports, it is appropriately selected, then I proceed with pressing the upload button. The IDE then says my upload was successful, but upon opening the serial monitor I find that the com port is now blank and I am no longer able to find my board among the port options (it did not change names, it is literally not there).