Weird charging

Anyone know of a fix for the weird charging issues on these things? I remember my old one would never go past 93% unless it was off and then it would go to 100. And my new one goes to 89% when it’s on and 100% when it’s off lol.

How do we fix this issue? I’ve seen tons of posts and people say to unplug the battery internally for like 30 minutes but that’s never worked for me. I’m assuming it’s software related since it charges fully when it’s off, it’s only when it’s on that this issue exists.

Any Homebrew apps or anything to fix this? Suggestions?