>>52493925NTA, but IDK if it was partial facial paralysis. At least, he has been smiling that way for a long time (you can see signs that kind of crooking smile / grin in his photo all the way back in 2021). It's just more noticeable now because his face is too thin.
He smiled the same way in his photo at Vegas early June, but it looked a lot less concerning since his face didn't look like some starving man / cancer patient due to the lighting, see picrel