Whe loan to Barcelona, he has showed impressive performance, even then he managed to become Xavi mainstay in every game they played, but unfortunately his poor relationship with Atletico fans and coaches actually made him have to leave for Chelsea as one of the recruitment requirements for Connor Gallagher at that time, at the beginning of the season he was actually able to compete in the Chelsea first squad but slowly he began to be eliminated, especially now that he has an injury that makes it difficult for him to get a place in the Chelsea first squad again later, so indeed moving to another team (Aston Villa) which can guarantee a place in first squad and more playing time is certainly a good option for his career at this time.
Felix not even good in Barcelona, he was being included as staring line up in Barcelona because there are no good players, he and other players i.e. Torres, Raphinha and Yamal were similar at that time.
But now, we can see both Raphinha and Yamal perform really incredible this season, Felix will always put on the bench if he was still playing for Barcelona.
Felix should get minutes to play in Aston Villa since Aston Villa not have good wingers.