No. There’s a difference between real man-marking and zonal marking with focus on a most dangerous player. This tactic simply doesn’t work in a way that it worked in the 90’s and earlier because the rules (or, rather, their interpretation) had changed so much.Messi is double-triple marked all the time. He still manages to score 50+ goals in most seasons.
Today man-marking usually means individual (instead of zonal) pressing. You don’t get a player that follows another player everywhere including the dressing room for the entirety of the game. There are rare exceptions, like man-marking of Messi in the games against Mourinho’s Inter, but it happened very, very rarely.