If you look at the quality of the teams in Group H, it is true that Barcelona is the strongest and there is no doubt that Barcelona will easily qualify from grub and even as grub champions, but with the quality of the team Barcelona currently has, it makes me a little pessimistic that they will be able to go further in the UCL this season.
I think realistically after seeing the performance of the Barcelona team in La Liga in their first few matches and I think it is not very good and not enough to fight against the strong teams in the UCL.
And being in Grub H is a big advantage for the Barcelona team.
Porto, Shakhtar Donets and Antwerp are still below Barca level I think. True, Barcelona will very easily move into the last 16, which makes perfect sense because Barca are superior in Group H. Even though they haven't shown consistency in La Liga, Barca still have a long time to prepare in the group phase. Overall, Xavi squad is still solid, the addition of Gundogan and Canselo can add depth to their squad this season.
On the other hand, several young players who graduated from La Masia are also very good, Lamine Yamal could be a new hope for the Blaugrana. Barca journey to qualify from the group phase will run smoothly i think.