Not denying that the Maguire situation was completely surreal but it is not really better in other leagues. Recently Marcelo kicked Mbappé and didn't get a red, VAR didn't even call the referee.
Even that Lyon fan account is astonished by that other non penalty call by VAR and the referee :
Look at the foul :
Even when called by VAR to give the red card, the referee watched the whole thing and decided to upheld his decision and gave a yellow card.
There is a referee on our forum who said it is sometimes hard for VAR referees to call the main referee and tell him he is wrong. And main referee will sometimes refuse the correct call from VAR because of their ego.