On balance, it helps him.
The economy is going into the toilet, and more and more people are fed up with the big banks, globalist corporations, high tech censors, and corrupt politicians. By the time 2024 rolls around, there will be a big majority in favor of "sticking it to the man."
There is no more embodiment for "sticking it to the man" than Donald Trump, and any indictments will just give him more credibility as the guy the establishment fears most.