Hi,
Macbook Pro, early 2015.
Experienced the same problem with overheating, battery drainage and slow charging.
I have resolved the overheating as suggested by thetorien 2 days ago.
https://developer.apple.com/forums/thread/655506?answerId=648568022#648568022
In Activity Monitor sdec process used <60% of CPU. Followed instructions on link suggested by him and resolved the overheating.
Did not resolve the still significant battery drainage (better than immediately after update though!) and slow charging...
My battery status still indicates that Battery Service is recommended.
BRG,
Qukot
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