In live play, I don’t think it appears a hand ball given the context of the “pinball”. Play on.
Should the VAR get involved. It’s reviewing a potential penalty.
The replays make it look far worse. His arm moving as/after the ball strikes it into the arm gives the impression his arm is hitting the ball. Idk, I think the replays make it look worse because it removes the context and the speed from the equation.

On the whole, I don’t have too many issues with it. See those contentious calls everywhere. My gripe would be that the on field referees deemed it acceptable. If that was a Wanderers player I think we’d be pretty hard done by not to get a pen.

Suarez made a thing of flicking the ball up into defenders hands. In the process of trying to move their hand out of the way it makes it look like they move to the ball.