Like I said, it shows the exact same on my Garmin Watch - as in the AXS battery doesnt change from 100% even when I know it is at at less than that
Must be a bug in how it communicates it charge to third party apps, as it works fine within the AXS app
The battery is in your hand, it shouldn't even be reading the percentage left
For what it is worth, my Garmin watch does the same when reading the battery level. I don't think it is implemented very well, I suspect it will got from 100% to 0% or very close with nothing in between