No, it's an intentional change due to Star Trek's Warp travel...

In order to better represent Star Trek's Warp travel within the available mechanics, each system is connected to virtually every nearby system, so visible hyperlanes would end up as a total mess of lines everywhere, rather than the "branching" that you'd see in a normal Stellaris map...

when i tried another modpack (which had hyperlanes on a toggle feature), they added lag to the game when shown and faster gameplay when not shown - so the benefit here could also be a faster game (by way of no visible hyperlanes)

i played STNH with hyperlanes on but to be honest i dont remeber how i did it. It was either a mod or a setting i had to change somewere. It did not help with any thing only to clutter the screen. I could see all the connections and you could not have a certain choke point (was the reason i wanted at that time the lanes), there were other connections that helped avoiding choke points so i ditched it.

So in a nutshell you wont be able to make heads or tails from what you will see on the screen and will lag your game alot.

admiral mengsk, how goes the battle with the zerg? :)

There's a mod on the workshop that puts the lines back, which some prefer, but I don't recommend it as the hyperconnectivity of the systems makes it looks bad

Have to bring this thread up a notch again. Heres a picture of my new game :

https://i.imgur.com/aGHhSqC.png

The problem, or a question is why i cannot warp directly to Boyle from Unicomplex 01, but i can warp back to Unicomplex 01 from Boyle? Game forces me to make extra warp throgh StJames.

There is a mod: ST: New Horizons Unhide Hyperlanes

I use it just for checking sector range and trade depot collecting range.

The New Civilisations Trek mod has a slider for hyperlane density, going from very low to vanilla to "Trek warp" emulation. And a toggle to display them on and off. I really would like to see something like that in New Horizons. Let the players choose how much lane density want in their games.

Sorry, not that really clear on what's being asked or why that'd be important to gameplay for the person who asked of it; all that'd be really needed is to know the most local routes around one's fleets in question overall.
The fleet officers inside each fleet naturally calculate the route the fleet should take when you give the orders to "go here" to them from the star system they're at to where you want them to go to.