The thing that I have heard most frequently suggested for desktop publishing for the small OSes is scribus.
https://en.wikipedia.org/wiki/Scribus
https://www.scribus.net/
Though inkscape has multi page support now too, so might be usable.
I've only used inkscape, and that was for making science paper figures.
It does look like someone's used inkscape for a zine
https://www.reddit.com/r/Inkscape/comments/jkxsn1/i_make_a_monthly_newsletterzine_using_inkscape_i/