While the question has been answered with links to fact-checkers, I think it's worth adding a video that shows just how this effect occurs, because it might not be obvious to people who aren't in the film/video industry. (It certainly wasn't obvious to me.)
Explained: Why This Video of Biden and a Dead Cat Looks Fake, but Isn't.
It's a matter of ...
Politifact has done the work here.
Steve Herman, a Voice of America reporter who was holding one of the microphones, tweeted about the rumors on March 17. "I was the one holding the lighter-colored fuzzy microphone and thus literally in front of @POTUS on the South Lawn," Herman wrote. "It’s all real."
Herman also shared a video created ...
It all depends upon what level of evidence you require really, but according to several mainstream sources, including "The Charlotte Observer", the footage is currently believed to be authentic, and not a deepfake.
Man robs 69-year-old Asian woman in attack caught on video, California cops say
Yahoo news ...