The Ubuntu 20.4 didn't recognize Raspberry Pi Pico W 2022 at first. It is related to the "type" of micro-USB cable function. Here more info: https://support.thepihut.com/hc/en-us/articles/360017234598-My-computer-won-t-detect-my-Raspberry-Pi-Pico.
For first steps, check page 5: https://datasheets.raspberrypi.com/picow/connecting-to-the-internet-with-pico-w.pdf SDK Installation: $ git clone https://github.com/raspberrypi/pico-sdk $ cd pico-sdk $ git submodule update --init $ cd .. $ git clone https://github.com/raspberrypi/pico-examples
$ cd