I haven't checked if this has been mentioned on the topic of whether the ball was out or not. Besides beIN saying themselves before they showed it, that 'it is not conclusive'(Wenger's reaction after seeing it: "It's a fact, the ball was out" haha). Also, besides the fact that the ref/linesmen went with what they thought they saw and VAR could not get involved because there was a turnover of possession.
Has anyone mentioned Real's 2nd goal at the Etihad(54 mins 33sec) last season?
City were 3-1 up and the team were confident. KDB shields the ball out of play for a City throw-in, deep in Real Madrid's half, but the ref gives it to Real. The City players protest strongly. Pep, who was right next to it, protests so much that he gets a booking before play continues. 28 seconds later, Real have gone up the other end and scored. There was no turnover of possession either.
Anyone remember how that was seen as a controversial decision in Real's favour, that will potentially be remembered for years to come? No, nobody went with that narrative because VAR doesn't get involved on whether a set piece or throw-in was correctly awarded or not. There was no "it was still the wrong decision and Real benefitted from a mistake" argument being made either. They just moved on immediately from what I remember.