That is a handball that would never be given for City but always given against.
I didn't think it was a penalty against Otamendi, as even though it was further than 5 yards, speed = distance over time and the amount of time Ota had was clearly not enough. The replay showed him pulling his arm away, the second he realised(it was even curling towards him).
PSG's incident was closer but he made himself bigger and didn't attempt to move his arm away at any point.
Like with the Otamendi incident, the the real time replay was not shown enough and it's important to show how much time they have to react. I'd say it probably shouldn't have been given but the issue for me is not that they are the worst decisions ever, it's that these decisions can easily have two different outcomes even with VAR by the looks of it and it wouldn't surprise me if the biggest factor will be who the decision is for or against.