have you come across scribus? https://impagina.org/features https://impagina.org/features you don't have to use all the desktop publishing features, but it do

have you come across scribus? https://impagina.org/features https://impagina.org/features you don't have to use all the desktop publishing features, but it does have multi page, flows the text from page to page, some basic vector drawing etc.