Yep that's correct - any contact with an attacker's arm in the immediate build-up to a goal, even if accidental, is treated as handball.
I know that, but you can see why a lot of people who don't know the 'Laws of the Game' get easily confused
sitting where I was with my son and brother, we all shouted handball even though his arm was by his side,
he still leant into the ball making his body bigger that is what the ref would have seen and gave the pen for
to take over 2mins for VAR to check it and send the ref over to the monitor means it wasn't a 'Clear and Obvious' mistake
the VAR ref must have micro-analysed the incident to take that long, the ref for his part, took another minute to review it
VAR wasn't meant for this sort of fine details it was for 'Clear and Obvious' mistakes - not to re-referee the game (this is what I've been told)
they looked at Isak's tackle at Brentford for ages, although the ref had said no penalty
they could not be sure for certain that Isak had actually fouled him or he had fouled Isak
but they eventually got to the decision of giving a pen after 3 minutes