XBee 900HP S3B - Arduino Uno - Getting Started

This is my first time here. Can the XBee 900HP and Arduino Uno can serial communicate in Transparent Mode or is it best to try SPI communication in API Mode without the escaped?

It was suggested to use digidotcom XBeeArduino software while using VS Code and PlatformIO.

Thank you MageMCU1

Most Arduino code (3rd party) interact with the XBee in API mode via the UART. I have never seen an Arduino XBee Shield that offers access to the XBee modules SPI port.