Yes. It is a humbling experience to submit our finest games to engine analysis. I recently played an OB game which I won with an excellent (I thought) attack against stubborn and valiant defense. After running the game through Shredder I thought, "My God! We both sucked!"
Self delusion
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In early days when I had a different ID and was a paying member I'd win some chess games thinking I'd played really good moves. A worry crept into my mind that my opponents would think I was cheating with a chess program (I don't have one and haven't ever used one.). Then I discovered you could have your games analyzed by the chess.com computer.
What a laugh my worries were when I saw percentage of inaccurracies, mistakes, and blunders.