There are still doubts about Girona, how they will be able to spend the end of the season, if they continue to lose points like this, it could put them in a very difficult position. I think a team like Atletico cannot remain without the Champions League, but you are right that they will now have a very busy schedule, and perhaps that is why Athletic Bilbao will have an advantage.
What I usually see when a team plays well at the start of the season is that they will usually play inconsistently towards the end of the season, either because of fatigue or because of injuries to key players, so seeing Girona often experience bad results I already understand why it is like that, a lot in In other big leagues, a team that is good at the start of the season will definitely be bad at the end of the season, but Girona still has a point difference that is difficult for Bilbao to catch and they can still recover from adversity to recover.
In their last five matches, Girona have suffered three defeats and it is really not good to lose points and Girona must be able to improve it in the next few matches, the remaining matches until the end of the season in order to be in the current position of finishing in the top four and getting a UCL ticket next season, of course it will also be difficult if Girona's key players are injured too, as long as their coach Míchel is able to rotate his players to perform better, I'm sure Girona will be successful in finishing in the top four and get a ticket to the UCL next season.