Definitely agree on the each baby has it's own journey. Tristan was 3kg at 34 weeks and still required ventilation and then CPAP. The first day or two is mostly the scariest, the journey is very much a roller coaster ride... bub doesn't do so well, then they excel, then they drop back again. The few days before home are the most frustrating, you are so close you can feel it and then there's a set-back.
In my experience it also highly depends on the hospital and the Dr bub is being looked after by. Some hospitals require 2kg weight before home others 2.5kg, which could mean another week or two in hospital.

Do you live close by the hospital?