I ran into the same problem yesterday on an M1 Max, using a command line tool I built for testing network and battery. Preferences reports Normal and 92% remaining capacity. Had a colleague confirm it on his M1 this morning. I'd like to test on a few more machines and at least one Intel before submitting it to Apple.

I opened a case with developer support over a month ago, and so far the only feedback I've gotten is that the engineering team is investigating. At first I tried to take a positive approach, that the issues gave me some extra time to polish my app before release, but now…