If you use the Arduino IDE to program the ESP32, you might be interested in [Andreas Spiess’] latest video (see below). In it, he shows an example of using all three ESP32 UARTs from an Ardui… ...

It’s why I tend to use the 32U4 or the like. I have a programmer but if I use a USB to Serial, the damn Windows box keeps assigning an ever higher vitual port number with each connect.