It doesn't lead directly to a goal. There was a rule change in early 2021 that if a goal is scored and there was an accidental handball in the build-up, it will only be taken off the attacking team if it led directly to a goal. In this case, can't say it didn't.
They do still get a few of these wrong, though.
From my understanding, VAR protocol also says that they can only overturn a decision if there is a clear and obvious error. It wasn't very clear that it did in fact touch his hand and the fact that they looked at it so many times says to me that it wasn't clear and obvious to them either.