Issue #6558 suggests that maybe Pi Pico W isn't fully supported yet (😿) but I wanted to add that even the most basic sample doesn't completely function:

import board
import digitalio
import time

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

while True:
    print("Hello, CircuitPython!")
    led.value = True
    time.sleep(1)
    led.value = False
    time.sleep(1)

prints the string repeatedly but the led on the Pi Pico W doesn't function (I have two Pi Pico W boards I got from adafruit between July 10 and July 20th, 2022).

Output:

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
Hello, CircuitPython!
Hello, CircuitPython!
Hello, CircuitPython!
Hello, CircuitPython!
Hello, CircuitPython!

Tested with all of:

• "adafruit-circuitpython-raspberry_pi_pico-en_US-7.3.2.uf2"
• "adafruit-circuitpython-raspberry_pi_pico-en_US-8.0.0-alpha.1.uf2"
• "adafruit-circuitpython-raspberry_pi_pico-en_US-20220720-f2bbe5a.uf2"

output from the last most up to date version to boot_out.txt was:

Adafruit CircuitPython 8.0.0-alpha.1-60-gf2bbe5a6a on 2022-07-20; Raspberry Pi Pico with rp2040
Board ID:raspberry_pi_pico

All tests done using Mu 1.1.1 on macOS 12.4 (M1).

No difference in behavior observed between any of these versions of CP. Possible both boards are from the same manufacturing batch and there's a common flaw, but I wouldn't know how to test that currently.