If we talk about efficiency, I think Real Madrid is the best team in the world right now. However, Los Blancos do not want to stop there. They wasted no time in strengthening their already star-studded squad for next season by bringing in two more world-class talents. Endrick of Palmeiras, and the second is the "blockbuster" with Kylian Mbappe. These two players joined Real Madrid and turned the already strong Spanish team even stronger. Real became even stronger and fans even thought about the prospect that Los Blancos would Become a team that could not be beaten. Coach Ancelotti will have to do a lot of work to harmonize these stars. I am excitedly waiting for the start of the 2024-2025 season to see the combination of this tot-star team.
No team can stay unbeaten 
they might be very strong but they aren't immortal.. currently Realmadrid is the best team judging from their current squad although they are also the defending champions of the Uefa champions league, every other teams will also prepare for next season just as realmadrid is preparing so I wouldn't jump into conclusion that they are the best team overall if we haven't seen their performance compared to the scale of other teams, we are only seeing their squad we don't know what they are capable of yet