Apple

So? By the way that max capacity will go back up if you're actually using it. Just keep it plugged in when you're near an outlet and let the battery run down to 20% every so often. If you're using AlDente just stop as the OS is designed to handle the battery just fine on its own. You need to let it hit 100% and leave it plugged in as it's still trickle charging when it gets there. Not to mention leaving it plugged in is not going to harm anything.