I bought it in hardcover and was deeply disappointed.
See my comments above.
There has been no justification for why the IP holders at Paramount insisted that the most crew of the Voyager be miserable once they returned to Earth, but it’s an acknowledged fact at this point.
Again, that’s an issue regarding screenwriting not tie-in fiction.
And on the screenwriting side, it’s an issue Paramount has already taken on with Lower Decks, Picard, and Prodigy’s very numerous references to classic shows and characters. All those Easter eggs were included.
Any characters created by tie-in writers are Paramount’s IP under the standard tie-in writer contract. No credit need be given even.
This has already been established as Prodigy and Lower Decks have brought TrekLit elements into canon.
Even Star Trek Online content is Paramount IP. The vfx team were able to directly convert renders of STO ships for Picard.