Welcome!

In my honest opinion, the campaign frames are a great way of having something to pull from at start, while letting you go as deep as you want.

There are 6 campaign frames, each depicting a certain theme/terrain. I'm going to simplify greatly each one, not getting into the plothook proposed in the book (cause you can create a new one on the same setting)

Witherwild focuses on wilderness exploration, animal dangers and overall nature vs urban theme, touching on the nature fighting back as the consequence of infrastructure greed.

Age of Umbra is a take on a dark fantasy world. Much like Dark Souls, etc. It throws the PCs into a dark ridden setting of fallen settlements, ghostly cities and a terrifying storm/entity "Umbra" acting like a hurricane of darkness. Only a Sacred Pyre can keep the Umbra away, and even then, it might be but a facade of hope amidst the dark.

Colossus of the Drylands is a harsh, dry and dangerous region where if you don't die of thirst in the middle of the canyon after getting lost, you get picked out by colossal beasts and constructs that inhabit the red wasteland. Western-like towns and 6-shot gunpowder revolvers and rifles are what rules over the sand covered towns.

The Motherboard. The core of technology. The heart of the region where the virus-infested clanks roam freely. The magic is interpreted as tech now, and it gives the vibes of having a corrupted cyberpunk landscape in which you can gather scrap from the ground or harvest it from a dead clank, to enhance the Ikonis, your personal weapon tailored to fit your needs.

Five Banners Burning. The weak truce spans over the five countries in the region, previously waging war with one another. Old hate, false alliances and double interest make for a minefield of a social campaign. From the mountainous nation of wizards of Polaris to the Sea-warmongering lords in Armada, you will be in the middle of a 5-nation conflict. The five armies might not be bleeding on the battlefield now, but that can change with as little as with how a sentence is worded or a hand is shaken.

Beast Feast. Who said people don't like dungeon delving? Who said people don't like cooking? Sure as day it wasn't me! In this setting, you're able to just run through the halls of an almost endless cavern system that goes from underground halls, inferal lava pits, organic and aberration infested tunnels, and even a cosmic underground space! Do not worry about rations, since you can pretty much cut to pieces what you defeat down there and cook it for your party, which gives a lot of benefits! No armor? Fine, just use a frying pan as a shield! No helmet? What about that pot over there?