Right, and economics as a field is difficult to understand for most people.
Presidents can't in reality take all that much credit or blame for the economy. A lot of it is out of their hands, and many economic shifts take longer than a presidential term to play out. But of course presidents will try, and succeed, because most people don't understand this.
On top of that, the GOP complains about how much money Biden "printed" during the pandemic, but Trump did his fair share of that in the first year of it as well. They just make dishonest arguments.