Whenever Voyager comes up, and especially when Janeway comes up, I feel obligated to share my unpopular opinion: the introduction of 7 of 9 and the Borg totally fucked up the show.
Season 1 is pretty rough (as per usual for Star Trek); Season 2 is better and has some real bangers mixed in with a couple stinkers; Season 3 really hits a stride and all the cast have good chemistry and lots of good episodes .... then they introduce 7 of 9 and the Borg and it goes off the rails. Season 4 is incredibly bad, and it's super obvious that Kate Mulgrew hated the introduction of 7 of 9. Janeway's character starts becoming EXTREMELY inconsistent and the writers just rehashed the plots to a bunch of Data's storylines. Seasons 5 and 6 are alright (but some kind of magic and chemistry of the early seasons are gone), and Season 7 experiences the same dip in quality due to general fatigue of everyone involved.
Season 3 really was the peak (before Borg intro at the end), where all the crew's characters and their relationships are really getting fleshed out, but the writers just stopped giving a shit about all of that development to play with their shiny new toy (7 of 9).
Blame it all on the booba - the showrunners saw flagging ratings and wanted the neckbeard viewership at the cost of any kind of internal consistency (they dropped the "lost in space scrounging for supplies" narrative, the science-babble went through the roof, and all problems became trivial in the face of 7 of 9's super-brain and/or nanobot-blood).
I still love Voyager because it is very comfy, but I will always maintain that it could have been so much better without the Borg and 7 of 9.
*I should note that there were a couple of earlier Borg episodes that were awesome, like the detached Borg colony that makes a new hivemind on a planet
at their posts until they went away