The eight-point advantage that Real Madrid currently has is an advantage because currently the challenger's condition is not much better than them, so Real Madrid can be a little more comfortable leading the standings. Even though there are still several big matches left when playing El Classico, for example, Real Madrid is still quite the favorite because it is currently much stronger than several other teams.
Real Madrid were given headache and a tough time by Girona and now they are ahead of them and you think they are going to relax and feel comfortable? They will not, just be looking at their next games and you will understand that they don't look comfortable, they will continue to destroy any team that comes their way because even Barcelona are not backing down from the race, a slight mistake from Real Madrid will give them more ginger and confidence to win more matches, 8 point can be broken if they are not careful.
Real Madrid are used to being under pressure when facing big matches in the Champions League and I'm not too worried about that. In fact, it will be a problem if several of their important players cannot play due to injury, making it difficult for Ancelotti to put in place the right strategy when facing Manchester City.
The last time Real Madrid faced Manchester City in the Champions League, they were more than comfortable in the Laliga than even the Champions League because the gap was like that in 2021/2022 and Manchester City was even leading in the first leg but eventually they win in the second leg to proceed to the final. I want them to win Laliga though but would be fair if they allow Manchester to win the Champions League this time.
