The games were easy for Barcelona
Barcelona will have a good Champions league campaign this season with how well they are playing, back to scoring many goals. Felix already becoming a favorite for Barcelona in just two games, also scoring two goals today as he score for them in their La Liga game. Xavi is using Felix well in a position that is good for his style of play, he will have many goals and assist this season for Barcelona. I will like to see how Barcelona will play against bigger teams as the competition continues.
With their current condition and by looking at the quality of the other clubs in the same group as Barcelona I don't think this is a big problem for them to qualify from the group phase. This is a good advantage for Xavi especially with today's striking victory makes them surely very confident that they will not be the same as the previous 2 seasons.
With Joao's presence on the wing today, they have many options and their performance has improved especially in goal productivity. Gavi is also quite comfortable back in his ideal position and this is what I expect from Barcelona.