Real Madrid should have spent this transfer window much more active. If they want to be champions, they must play without making any mistakes and have no problem scoring goals.
Right now they have started the league well and have not lost points but the other teams have not yet reached their potential to play at their best. Considering that it was a league where competition continued until the last few weeks, teams with few or not enough star players may start to lose points in the following weeks of the season
No club is truly perfect without making mistakes, all must go through ups and downs, both in terms of performance and the players' fitness. That applies to all clubs in any league. As for stability or not at the end of the season, we often see how the cycles of big clubs and weak clubs have varying mental levels. Barcelona and Madrid are clearly 2 clubs that will fight to reach the top of the standings, like it or not, the demands are much tougher than other clubs who can only try not to be relegated.