At least here in Brazil, we believe that the players are very good mechanically and individually, but we lack good coaches and igls.
Furia and MIBR are 2 great examples, they are 2 teams with good players mechanically but they are DUMB, HAVOC, KHALIL AND MWZERA ARE DUMB, they don't know when to play together, to stop looking for exchanges of shots, they are just dumb.
Brazilian Valorant lacks intelligent players, no wonder Brazil's biggest successes were with non-Brazilians in tactics (saadhak and fr0d).
And this becomes clearer when we see EG, mechanically it is not a team that fights at the top, but the tactic is very strong and that is why they can go head to head.
In short, if the tactics don't improve, if new igls and coaches don't come, Brazil will continue to fail.