In fact, the truth about Juventus is that their performances are not stable. They can do well in one match, and in their next match, they can mess up.
I feel like this "inconsistency" applies to many big teams this season. On the other hand, if we're looking at league form I think 4 wins in 5 games is quite consistent. Sadly these forms don't translate well across different competitions. A post-match analysis that I watched suggests that Juventus is struggling defensively at times so conceding 3 goals is not a surprise, even though they managed to keep their GA quite low in the UCL. I agree that the atmosphere of the stadium gives more power to PSV though.
The game yesterday was also unlucky by Juventus, they took poles, the goalkeeper saved many dangerous balls, but it must be said that the PSV played better over the whole game and they deserved a victory and the passage of the round, L 'trend of the Italian teams is this here, unfortunately it is like this and we must take note of it and try to improve the situation
Not only Juventus but also several Serie A teams this season have problems with the consistency of their performance, the proof is that AC Milan and Atalanta also had to be eliminated in the play-off round, now only Inter Milan remains as a representative of the Italian team.
Juventus' defeat to PSV was not so surprising because Juventus was unable to show good performance in the second leg even though they got the advantage because they were ahead on aggregate in the first leg, but PSV was able to appear stunning to put pressure on Juventus in front of their own supporters.