I’m always bugged more by individual moments than bigger things. So while T’Pol might be wearing an old fun center carpet as a uniform, and the temporal Cold War is both overly complex and excruciatingly boring neither of those things bothers me more than the following.
In season one, there is an episode titled ‘Unexpected’. In this episode Tripp becomes space pregnant from an alien space mama. During his pregnancy he is framed as becoming irrationally overconcerned about the safety of very minor or unlikely hazards.
At one point, he is in engineering and complains that if you hold onto the handrail of the elevator while it moves, your fingers will be sliced off against the scaffolding since there is no gap.
A crew member brushes him off by just saying, essentially, “Lol skill issue, just don’t hold the handguard.”
Again, Tripp is the one being framed as irrational in this discussion. Because he has a problem with a handguard that slices your fingers off.
Space hormones or not, he’s right that it’s a terrible design.
Fuel sources in Voyager are very canonically “not common.” But then that probably has more to do with using antimatter as fuel, instead of your nearest asteroid or gas pocket.
While you are correct that it is not perfectly efficient… the ability to stop off at a random star and expect to find some form of matter that can be turned into fuel simply by transporting it aboard and processing it into a singularity or something… would be extremely useful for an “exploration” ship