I think that is an obligation that other teams have to do and maybe it requires strategy to a decent squad depth to be able to do it. If any team makes it to the final round and faces Real Madrid then it is clear that they will not be able to win the title and Real Madrid will be the champions. Therefore, before reaching the final round, Real Madrid must be knocked out in the quarters or semifinals because otherwise they will continue to dominate the Champions League.
Like last season where Manchester City eliminated Madrid before the UCL final and finally Manchester City became UCL champions for the first time stopping Madrid's dominance in the UCL by beating Intermilan in the final, but unfortunately last season Manchester City failed to eliminate Madrid. There was a clear opportunity for Madrid to chase the trophy. The UCL went smoothly and beat Dortmund in the UCL final, but in the new season there will be many surprises and I also hope that not only Manchester City but there are other teams that can beat Madrid but no one has been able to beat them except strong teams like Manchester City or Munich. Moreover, Madrid has the new strength of Mbappe, it is clear that it will also make it difficult for other teams to break their dominance in the UCL next season.
It will be difficult for City to stop Real Madrid next season in UCL because the Real Madrid have strengthen the club more than last season that they won City in the quarter finals. Mbappe is a big advantage to Real Madrid and it means that they will be able to score more goals and defeat whoever the clash with.
If only City will not play Real Madrid early like last season, it is possible that City will go far. After next season we might not see much from City again if Pep leaves because the new coach might not have all the experience and skills that Pep is using to move the club to success. This is where Real Madrid will continue to dominate the league, maybe another club will become a rival to Real Madrid by then.