Do we need to do past leveling story to get access to new content

[Tohrustrasza-silvermoon]

Title, as a returning player I am a bit curious about this.
I have everything done as far as the first part of TWW story goes but I never did part 2 or forward (where the fleet arrives to Dornogal) because frankly, story and clicking npc after another doesn’t interest me one bit.

But, do I need to do those following chapters after the first one to access the new area and content?

[Snowlady-ravencrest]

You need to complete all of the leveling campaign
Enter the Hub of Goblin Ingenuity in Undermine(d) Zone Overview

Welcome to Undermine

A city like none other, it stands as a testament to goblin ingenuity and creativity as experts in both technology and alchemy. The journey to Undermine requires level 80 and the completion of the Khaz Algar leveling campaign.

Khaz Algar Leveling Campaign:

• Isle of Dorn
  • Chapter 1: “Breaking Point”
  • Chapter 2: “Earthen Fissures”
  • Chapter 3: “The First Blow”
• The Ringing Deeps
  • Chapter 1: “By Candlelight”
  • Chapter 2: “Dark Revelations”
  • Chapter 3: “The Monster and the Machine”
• Hallowfall
  • Chapter 1: “The Guiding Star”
  • Chapter 2: “Gathering Shadows”
  • Chapter 3: “Hope in Solidarity”
• Azj-Kahet
  • Chapter 1: “Friends in the Dark”
  • Chapter 2: “Unraveling the Trapped”
  • Chapter 3: “Plans Within Plans”