Voyager is the best ST of all time and Captain Janeway is one fine mother F.
Reported for being a Janeway fanboy.
I will grant that of all the ST captains she's been the most antiheroic, which in some ways made her well suited for the 1990s. The basic problem ST:V'ger had was despite giving the crew a well-defined goal, get back home, it never embraced it or had even the outline of a plan of how it would happen. It also had the misfortune of starting before American television was generally willing to accept episodic television with continuing story lines. However, the dreadful writing of the show led to an overreliance on time travel as a deus ex machina to get them out of scrapes and/or destroy the ship without consequence.
Kate Mulgrew did good with the character she played, but Janeway was very one-dimensional and stereotypical and easily the least interesting of those who've sat in captain's chair in Star Trek (with the possible exception of Discovery which I haven't watched as even if had gotten rave reviews, I still wouldn't have bothered paying for CBS:All Access.). Commander Shelby in two episodes was far more compelling than Captain Janeway in seven seasons.
You say that, but just as Voyager was getting going DS9 was dramatically and permanently changing its status quo with the Dominion War. If DS9 could do a dramatic overarching plot while still maintaining an episodic formula, there's no good reason Voyager couldn't have tried harder to do the same thing.