The move expands the competition from its projected 80 matches to 104 and also means teams will have to play eight games to win the tournament, compared to seven at the 2022 World Cup.
Fifa also approved the access list for the 32-team Club World Cup, which will take place every four years from June 2025.
The La Liga statement said: "Fifa is showing complete disregard for the importance of national championships, and the football community in general.
"Fifa completely neglects the economic damage these decisions inflict on leagues around the world. Leagues were not consulted about any of the changes presented.
"These decisions do not take into account the competitive, sporting and economic impact on national leagues, clubs and players, by further cramming an already overloaded schedule. Fifa only takes into account a small group of clubs and players."เว็บคาสิโนออนไลน์อันดับ1