The Video Assistant Referee is an extra set of eyes, with the advantage of high quality video feeds and slow-motion replay and is there to monitor incidents the on-field referee may have missed, such as 'violent conduct'.
In our game, the on-field officials missed an Everton player deliberately kick Ederson in the head, and yet VAR ignored it. A simple case of violent conduct, and they IGNORED it, like it never happened. The PL have spent the majority of the evening playing whack-a-mole with anyone who dare post a video of the incident, and the major TV sports outlets have IGNORED it.
Weird, huh?