What should happen and should have happened fucking years ago, irrespective of v.a.r. is players should not be allowed to approach the referee to argue with decisions.
Immediate yellow card.
Why this has not been introduced, is again imo worrying. The only reason can be that there are powers opposed to it. Those same powers imo are people who want to influence officials to work in their favour by applying pressure over time. They will try to apply the same pressure to v.a.r.
There is no way the game of football is improved as a spectacle, by allowing players to mither officials, it could have been stopped completely, it hasn't been, because somebody, wants it to be allowed.