Top European coaches have complained about the policy, but it seems that complaints are just complaints without much consideration. The more matches the players will play, the greater the risk of injury to the players due to fatigue or the like. Of course that would cost the club and the players themselves, but they can't do much.
Pep Giardiola is quite vocal about complaining about the large number of match schedules in several international competitions, but there has not been much positive impact from the policies he has taken by FIFA and UEFA.
Before Pep Guardiola there was Jurgen Klopp who voiced his objections to the tight schedule of matches. Of the players, Toni Kroos, who was the most vocal, said the same thing.
I don't really understand the rules made by UEFA and FIFA, but the level of density of match schedules in several competitions is no longer comparable. The direction is running projects that generate profits for them.
Here, I am on the side of the players and coaches who criticized the tight schedule of matches. They are professionals, but they are people too. Don't make soccer players look like dolls.