this is why if you ask the players -- "is baldur's gate 3 act 3 good?", the players will answer -- "yes, this is good, but ...??..." but the players don't know how to say "somehow i feel somethings lack".
and i think the somethings are "the finishing touch", just as the final stage of "never winter night THoU".
this makes the plots of baldur's gate 3 feel "good", but can not reach great.
I fundamentally disagree. I think Act 3 is badly designed. I have been saying from the beginning it is both far too bloated and far too lacking at the same time. It should have been split into a minimum of 2 Acts (making 4 in total, maybe 5 with a final, shorter act involving the Netherbrain) with Act 3 and Act 4 both giving far more time to Orin and Gortash respectively. Along with that, far too many quests (especially the companion quests) feel rushed to completion in an effort to fit EVERYTHING in. In other words, they needed to give Gortash and Orin just as much buildup and payoff as Kethric had with their own Acts dedicated to them. Instead, they stunted both and split the act between the two. Combine that with a wealth of other quests and companion conclusions that felt too rushed, Act 3 is a bloated mess with not enough time given to everything that should have been.
hahaha

yes, i know your feeling.
strictly, the screenwriter should consider polish the second half the story.
i said that a game story is "good", the score is 75/100.
and you are talking that how to polish a game story to 85+/100 (great~excellent).
i think that if some important factor or event delays the netherbrain's threat, this will make our player character has plenty time to explore the city.
or there is some threat beyond the netherbrain, we gain enough buffer time after defeat the netherbrain, this is also make our player character has plenty time to explore the city.