Could we use PMOD for uart communicatation?

Hello, I know that we could use uart in ardunio or rpi In Pynq-z1 and Pynq-z2.
But could we use the four PMOD interfac e to receive uart data?

Yes, but you would need to build your own custom design for this.
You can buy Pmod UART modules (with USB connection), or you may be able to wire this yourself to 2 Pmod pins depending on what you need to connect to the other end of the UART.