First off, Q says there is no true "deepfake". What is being called deepfake can be detected by the same technology that created it. So, that being said: If President Trump put out a deepfake video of himself, I think the reason he did so might be to put us on notice to look carefully if the Cabal's MEDIA tries to use deepfake footage in the next couple of weeks.
No one in future will be able to claim in court (tribunal) "that was a deepfake video of me (doing whatever horrific thing) doing that", because it can ALL be detected and some of it is on tape, not digital. I'm not so concerned with that right now, but just deciphering POTUS' clear message. It was a VERY strange thing for him to do if it is a "deepfake", so we need to figure out why the team did this.
How would that have anything to do with larping if the video was put on his account and not repudiated by Scavino or anyone else?
By the way - I do not know for certain it was a "deepfake". Not really my area of expertise, but the case laid out for it BEING deepfake was pretty solid IMO. Artifacts that did not make sense and were, in fact, physically impossible.
I seen them. Looked like larp