Well, without the cutscenes, the Injustice 2 story might last you approximately 12 hours, give or take. This assumes you're playing at a decent pace and not getting stuck on difficult sections for too long.
One great 'Danny Phantom Youngblood' fanfiction is 'Youngblood's Redemption'. It delves into Youngblood's character in a way that makes him more complex. It shows his backstory and how he could potentially change for the better. It's a great read for those who want to see a different side of this character.
Sure, the Destiny 2 beta allowed for skipping cutscenes in the story. It's a common feature in many games these days to give players more control over their experience. If you're not into the story part and just want to get to the gameplay, it's there for you to use.
The cutscenes are very important. They help to tell the story. Without them, we would not understand the context of the medical cases or the relationships between the characters as well.
One interesting Youngblood Danny Phantom fanfiction could be about Youngblood teaming up with Danny to fight a new ghostly threat that neither could handle alone. It might explore their dynamic as an unlikely duo.
I'm not entirely sure which specific 'wage war youngblood story' you're referring to. There could be a story within the context of the band Wage War related to a song called 'Youngblood' perhaps. Maybe it's about the youth, the energy, and the struggle that the lyrics convey.
One key element could be the idea of struggle. Since it's 'wage war', there must be some kind of fight involved. And 'youngblood' might imply that it's the young ones doing the fighting.