...maybe next to the clock... i saw this in firefox vr surface and saved me several times of running our of energy ;-)
of course i could use the oculus botton (as i use oculus quest 2) to bring up the surface of the host and see the percentage of battery status, but its annoying to do this oftenly.
firefox also shows battery status of the remotes connected to the headset - cool feature too but not that important impo
would be awesome to get this in the best vr player too!