Dembele has answered all of his doubts well, his contribution to France in the world cup being a godsend for Barcelona. I also see that several Barcelona players have improved a lot during their time with their country in the world cup, Gavi, Pedri, Kounde and Ferran Torres have all made good contributions to their country. The elimination of Spain is also a blessing for Barcelona, its flagship players can return to training with other players who have not competed in the world cup. Xavi can do regular training to make his squad more compact to face the competition after the start of the League.
I hope Xavi is not too happy that Spain failed in the World Cup even though it would be very advantage for Barcelona, but maybe there is a sense of satisfaction with the performance of his players who have maximized in this World Cup. Some players like Gavi, Pedri, Ferran, Balde, Alba, Busquets were the mainstays for Spain in the World Cup under Enrique and Xavi can be proud of their performance until the end.
Several other players such as Dembele, Kounde, Depay, De Jong will still defend their country in the quarter-finals. These four players are also important players for their country, so obviously Barcelona should be proud of what their players have achieved at this time. Some players will return to training with Barcelona, but others are still fighting their way to the final.