Incorrect. It clearly indicates Agatha is behind him to get info from Wanda. Not that Wanda created him and she took over him. She indicates she was going to use the real Pietro's body but it was far away and full of bullet holes. so she made one up that is not as good but Wanda desperately wanted to believe it was him so she accepted he looked different. That was all AgathaWhen it comes to Fietro, Agatha says that he was Wanda's doing, but Agatha used a "crystalline? crystalloon?" illusion so that he'd be her eyes and ears (which explains how he knew it was all fake). [The Italian subtitles is just "an illusion spell."]
But that doesn't explain why Wanda would create a Fox's X-Man Pietro.