Yes, Arsenal play very well at home, but PSV are still not favourites in this game, even when Arsenal play away, it seems to me that PSV will not be able to win. Probably Arsenal have no rivals in the group and they are guaranteed to take the first place.
Arsenal is indeed the favorite in the group, and it is not easy for other teams to beat Arsenal. Arsenal was lucky enough to get an easy group. they can be sure to qualify for the next round.
Compared to Group F, I think it will be very difficult for each team to compete for 2 tickets to qualify for the next round. Group B will be very comfortable for Arsenal. There is only 1 team left to accompany Arsenal, maybe Sevilla or Lens. both are equally strong I think. they showed a draw which I felt was beyond predictions. Sevilla performed quite well. very different from the performance shown in La Liga.