The most surprising to me, was that 74+ million people just voted to re-elect him. I really cannot wrap my brain around that.
I did not realize the depth of the narcissism. There was obviously a lot, but I did not really expect it would be 100.000000% total. I hoped at least, that somewhere along the way, he would let somebody else do something sensible, and just take all the credit. But it had to be absolutely, totally, entirely about him, so nope.
Not much else was really surprising. The Capitol riot went further than I expected, but everybody knew something would happen.
Unfortunately, we are not done with DJT. If the Senate does not vote to bar him from office, and if he decides to run/grift again, he will still win the R nomination easily. I will rest much easier now that he no longer has control of the government, but like a shambolic zombie, I expect him to try and come back.