Hi @pedrapislwyn, I suggest (in case you don’t know it) this Post and Video by @benwiggy.
(It was made in Dorico 4, in 2022, and now there are probably new features that would make the process even easier) :
It shows the many advantages of using Flow and generally the Dorico elegant, consistent and effective workflow for such projects.
The main advantageous aspects of adopting the Dorico workflow would be IMO: Setup (with the Players, Flows, Layouts interconnection), Page Templates, Flow Headings , and of course all the global settings, that give coherence and cohesiveness to the whole Project (and you can export and import the desired settings between projects using the Library Manager) etc…