That’s insane because your MacBook should regulate that and prevent such a scenario from occurring without resorting to third-party software. In all those years I’ve never ever had a MacBook battery fail prematurely because it was plugged in for long periods on end. My current MacBook Pro’s battery should have been long gone otherwise. Sounds like a fluke on your end really.I agree. I had a 2020 M1 MacBook Air and the battery died within six months. When I took it to Apple to get them to check it, they asked if it was plugged in all the time. It was. I now use Al Dente.