PZEM-004T v3.0 and NodeMCU / Wemos Mini running on Blynk - How To procedure

Of course!
SoftwareSerial is used with boards that only have one hardware UART, to enable debugging and interfacing with other hardware at the same time. As your ESP32 has two hardware UARTs you could use one of these instead of the SoftwareSerial port.

Don’t bother, it’s not necessary. ESP32s are 5v tolerant on their logic pins.

Pete.