Belgium was rumored to be able to win a trophy some time ago at the previous World Cup as well as the European Cup but that didn't happen, and this will be the last chance for the best Belgian generation as far as it has ever existed, to qualify for the group phase they can but to the quarter-finals or semifinals it's still not clear because they will face teams that are just as good later.
I am not very enthusiastic about Belgium this time. From what I have seen over the years, teams that are dependent on a single player (not just talking about Belgium, but also about teams such as Portugal, Norway and North Macedonia) almost never performs well during global tournaments such as World Cup and Euro Cup. Now some may argue that the case with Argentina is similar. But IMO, that is not the case. For Argentina, apart from Messi, they have very good players such as Ángel Di María, Lautaro Martínez and Paulo Dybala.