In my opinion, it is impossible for PSG to make a comeback in the second leg, because they will play at the Camp Nou, it is very difficult for PSG to put pressure on Barcelona, although nothing is impossible, but in reality it is very difficult for the clubs out there to turn things around, Barcelona just needs Just a draw to ensure they qualify for the next round and that would be an extraordinary achievement. In several seasons they have always been knocked out in the group preliminary round, so it is very clear that Xavi's squad's ambition is to prepare players who are quite modest but strong in the individual game so it doesn't matter. It would be surprising if Barcelona is able to compete in the European caste this season.
Of course, Barcelona's match against PSG at Camp Nou will have the potential to be lucky for Barcelona and indeed PSG is very tough because of course PSG is required to win because if they don't win, of course Barcelona will advance to the semifinals.
However, I saw the match in the 1st leg with a score of 2-3, of course I predict that there is a potential chance of winning for PSG and I am sure that Enrique will use all his best strategies to beat Barcelona. but it must be tough for PSG because playing at Barcelona's headquarters is certainly not an easy thing.
Yes, of course Xavi will try to make Barcelona perform well and yes, Xavi will definitely prepare and train his men to perform better in the next match and yes, Barcelona will definitely be hungry for victory in the Champions League.
but somehow my feeling is that Mbappe and his friends will be able to beat Barcelona, we'll see, but it will definitely be an exciting match.