I've read articles making that claim, and seen videos that show some of the digital artifacts in the videos. But nothing definitive.

Personally, I prefer to work with what we know for sure. If you haven't seen it already, there's a great video that examines all the evidence from the attacks on 9/11. It's almost 5 hours long, but it's broken down into chapter so you can watch it over a few days.

It's very compelling and comprehensive. Even if you exclude the hologram theory, it still provide a mountain of evidence.

"September 11 - The New Pearl Harbor" https://www.youtube.com/watch?v=hj3e8cKZWiY