if not managed to get the Europa League. It will also be difficult in La Liga because Barcelona is not completely safe yet. Madrid is very close, and it won't be easy for Barca.
if the Europa League is too difficult for Barca later, hopefully, Barca can focus on La Liga, that's all that can prove the current performance of the squad. Likewise with Xavi's proof. though fans can see how much change Xavi has brought to the team. without trophies, you will not be praised.
But from what I can see from the players' performance in the world cup and the team's situation during this season, I can say the truth even if I can a fan of Manchester united I think Barcelona got a better chance because Xavi can give a better atmosphere to his team and can make them a better situation also his a champion for his club but there not a such situation on the other side of the story for Manchester united. Yet nothing is clear to me but I guess this season Barcelona will win the cup.
I'm a Barcelona fan, but if we look at their performances in the Champions League it's very boring. seriously, as if Barcelona had lost their tiki-taka which had always been their hallmark. there were a lot of mistakes they made, both Xavi as a coach and some of their senior players who underperformed. Busquets, Raphinha, Dembele and even Pique. their midfielders who are not too creative in crucial matches, De Jong who always sits on the bench.
IMO, there are many factors that are obstacles for Barcelona. so, I wonder what Xavi will do after the league is back on. on United's side, I'm quite optimistic they can do even better especially in the Premier League. as I said in many posts, currently Erik Ten Hag's troops only need center forwards and attacking midfielders. if Ten Hag chooses the right players in the upcoming transfer window, I'm sure Man United is a very tough opponent that Barcelona will find difficult to defeat in the playoffs later.