Therefore, I think it's natural that Barcelona won the group but still, there is no guarantee for Barcelona to be able to go further in this knockout phase . But ya, about for the match against Napoli who are not doing well at this moment, then at least Barcelona have a chance than Napoli . But still, for me the chance that Barcelona has to win is not so good either, because basically Napoli is also not a weak team at all.
Seeing from the opponents they faced in the group phase, it is very natural for Barcelona to qualify and even become group winners because after all the comparison of the location of its strength is very different if we talk about strength and experience, Barcelona has a big advantage when compared to its opponents.
But the test is after they qualify because after all this seems to be a real enough test for Barcelona because it will face strong opponents.
Napoli and Barcelona have met before and I think they should be aware of their strengths even though it was 2 seasons ago but the difference is not too far even though the performance is different this time but in terms of attack Napoli and Barcelona are still the same.
Currently both also have almost the same problem where their finishing is not very good so this can be a reference for Barcelona and Napoli especially since the match is still very long to start so they can still stabilize themselves in the competition in the Champions League later.