The VAR system's corrupt because it's broken, and broken because it's corrupt. The system re-doubles the majority of contentious decisions.
The only time it is ever good is when it corrects a bad decision, but more than twice as often it re-doubles a bad decision or creates it in the first place.
Personal ties between the referees outweigh football in the decision-making, and no one of importance is held to account for any of it. It corrodes the standard of decision-making on the field, even for decisions that are never reviewed.
They should get rid of VARs for everything except offsides and line decisions, and recruit talented schoolkids or similar to administer the system—get in some e-sports types who know nothing about football, but everything about judging a bit of geometry on a monitor. Let the on field ref carry the can for handballs and penalty area roughhousing.