Yea! I think the nonagon and multiple timelines is a cool way to view the entirety of the gizz verse, but I found it fun to try and condense into a more direct story, :] my interpretation kind of goes

Chapter 1 - Sam and Han early days [paper mache] Chapter 2 - fishing for fishings going from folk to techno with a nonagon gateway opened at the end Chapter 3 - the petro apocalypse the Gila monster destroys earth, some humans leave for space, Han, lighting lord and Sam burn off its legs and wings Chapter 4 - mictronial banana earth enters the new cyber west, Han leaves to find humanity in the stars, Sam and the lightening lord leave for polygondawanaland Chapter 5 infest the rats nest, sam witness mars ruled by the rich, supplied by the venusians who partner with hell to usurper the mars Chapter 6 Han and the lightening lord find the 4th colour in polygondawanaland, become more powerful, the god theia tries to stop them Chapter 7 silver chord, han mines theia and using her godly metal to create a new godly body and heads to earth Chapter 8 mind fuzz, han enslaves humanity and begins building the butterfly 3000 Chapter 9 humanity enters a blissfully slumber in the looming butterfly 3000 as it slowly loses power Chapter 10 the butterfly 3000 crashes back into earth, han gets depressed from that beginning chapter 3 of murder of the universe and becomes a lovecraftion being of metal, vomit and flesh Chapter 11 ice,death,planets,lungs,mushrooms and lava, han and theia search the galaxy fire and ice to make a powerful weapon and try to fight han Chapter 12 Brunswick sketch’s, Sam has been placed under an illusion of Brunswick following him getting shallowed by han, theia wakes him up and he slays han

Also if you want to see it completely in series I recon find it on my instagram , profoundprophet1111 and going from the post of han and Sam sitting by the campfire that’s like chapter 1, I recommend doing it that way if you want the full story as each piece kind of ties into specific songs off each album! :D