Of course, they are going to need to work hard to actually stay at the top of the competition. No club is actually going to be able to perform badly and stay at the top. Not even the great Real Madrid. But so far I don't think we actually have got any reason to doubt Real Madrid. They have shown good performance and they also have been able to win against the biggest competitor which is Barcelona. They just need to make sure that the players stay healthy and do not get injured. Especially Jude Bellingham, who has been doing the bulk of the scoring for Real Madrid in this season. he has been the biggest success so far for Real Madrid recently.
Indeed. If Real Madrid fail to maintain good performance, they won't survive in UCL. Although Real Madrid has a nice history in UCL, it doesn't mean they don't need to do hard work to stay as the favorite team. UCL is the highest football competition, there is no space for lazy team in this competition. However, it is true that Real Madrid showed us their consistent in the last few matches. They could maintain their position in the top table of La Liga and they always won the matches in UCL group stage. It indicates that Real Madrid commits to keep their chance for winning the titles both in La Liga and UCL.
Yes, they succeed to beat Barcelona in the last match in La Liga. Again, Bellingham becomes the most shining player in the match. This can be a special motivation for Real Madrid to continue their positive performance. With this condition, we can trust Real Madrid to reach the final round in UCL. They seem ready for the knockout phase.
As the most prestigious club competition in the whole of Europe, the UEFA Champions League competition isn't a league where any team can relax and feel that they'll be undefeatable probably because they're currently running on a good form because until the final winner of the competition is confirmed, there's every possiblity that the least expected team can surprise everyone and lift the trophy.
Real Madrid are currently one of the best clubs in the competition and are also the competition's most successful club but if they don't continue to play in their current form or probably improve their performance this season, they might not even make it to the semi finals.