I got OVR Metrics Tool from the Meta Store - free. Adds a HUD overlay that you can monitor many facets of system performance. The most of these important to me is battery level. To get the most out of battery longevity (how long before the battery needs to be replaced) most experts seem to agree the charge level should be kept between 20 and 80%. Unfortunately the Quest 2 gives a low battery warning at 16% or lower.
I requested that the warning be changed or settable to 20% or an overlay be added that monitors the battery level. It is all to easy to get engrossed in an experience to forget or to interrupt an experience to open menus or ask Met AI for your battery level.
But now I can have an overlay with the battery % onscreen at all times.
