So… I’m going to walk back my glowing support for Pico somewhat.
Yesterday I tested both the Pico Neo 2 and Quest 2 in the same area under low light conditions in an empty room. Not ideal conditions but I wanted to push the limits of the tracking solutions.
The Quest wouldn’t track at first, it needed the lights on to set up the guardian, but switching the lights back off afterward it continued to track perfectly. The Pico struggled to confirm its guardian with the lights off but got confirmed after a few extra seconds, however when it came to using it the headset the image floated away and the virtual floor rose up to head height. So the Pico’s tracking software is no match for the Quest 2 under poor lighting conditions.
Something to keep in mind if you’re planning to switch from lighthouses (which work perfectly in pitch black), to camera based tracked if you have a low light arcade.