I cannot stress this enough - SCOTUS did not define what is an official act. So all you folks saying "well okay so now Biden can..." are not getting the bigger picture here. The President is immune for official acts, courts will decide what is official, and SCOTUS has last rule on whatever courts decide.

So if Trump does some fascist shit they like? That'll be official. And if Biden tries to do something they don't like? Unless it's written into LAW that's a Presidential power, it won't be.