No home coming because they got whisked straight back to the DQ?
Well, we can suppose that right after their arrival on Earth (notice that I did not say "homecoming" !

), the entire crew would have been quarantined, the time to undergo a battery of health examinations (physical and mental) then the senior crew (including Capitain Janeway) should have answered interrogations about their discoveries and their meetings with the various people crossed during their long trip, especially about the Borg universe, etc....
.It's only after all that (seriously, to examine about 130 people then to question them, takes time, guys!), that the crew could go home and definitively join in their families and friends.
The logs would have been read and USS Voyager would have been studied (in particular, the improvements brought to the vessel, AND of course, Borg alcoves) before becoming a museum piece Hey after 20 years, I guess that the vessel cannot be used any more, right?!....
As for ex-Maquis members, I think that even if they were rehabilitated for services provided upon Janeway's recommendation (= they avoid the prison and keep their rights for pension), it isn't sure that Starfleet accepted to reinstate them in giving them some new missions, except maybe Torres who is both an expert in her domain and the daughter-in-law of Admiral Paris what protected her.
-> I can suppose that Chakotay turned to the civil life (teaching?).
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As for Old Admiral Janeway, her death saved her from the humiliation of a trial which would have bring to the loss of her title and/or even to the prison.
We can suppose (and hope?) that her doppelganger will have a brilliant career and a wiser but more very solitary existence (she could allways count on her friends (a healthy Tuvok, the Doctor, and the others)!
