Wormholes always kinda rubbed me wrong in sci-fi. They're always depicted in a way that screams fantasy, not science, with only one exception that comes to mind, which was Interstellar's depiction of a wormhole as a sphere, even taking the time to explain why it looks that way.

The only got it half right though, since as soon as they enter the sphere it's straight back to the fantasy BS with the blue tunnel. That scene could have been a really cool transition of entering the one 'side' of the sphere while exiting the other simultaneously. Cut from the crew's perspective seeing lens-like distortion of the stars, to an external view of the ship moving into the sphere.

I kinda feel like that's how they intended to do that scene, with the whole buildup about the sphere, but decided to throw a nod to oldschool science fantasy for some reason.

Oh well. They got it half right, and that half was pretty fucking sick - it was the first presentation of a wormhole that didn't instantly yoink me out of suspension of disbelief. Until the blue tunnel ofc, at which point, yoink.

To answer OP's question, I guess for me it's less a specific concept as it is presenting something possible only in theory in a believable way. The whole lens-distortion style transition would have been way less flashy, but less can be more.