Ultimately every World Cup is largely forgettable and will be mostly remembered for a few iconic moments rather than as a tournament as a whole. Every tournament has that one major association imo. 06 was Zidane, 10 was Nigel de Jong's assault on Xabi Alonso, 14 was 7-2, 18 was really forgtettable imo, Croatia's run probably the most remembered part of it all but maybe someone can think of something more associated, idk.
Point being, this WC will be remembered for Messi winning it. The rest will be largely forgotten.