I tend to use Google Docs as a scratchpad for jotting down ideas and outlining the core of the game and then I do most of the work in Affinity Publisher, which makes working with the layout, art assets, and copy a much nicer experience. I would definitely recommend it (or InDesign if you want to stay with Adobe) and at the moment it's 50% off on their website: https://affinity.serif.com/en-gb/publisher/.
It also allows you to import PDFs too, so you may be able to import your game fairly simply: https://affinity.serif.com/en-gb/tutorials/publisher/desktop/video/285249814/