You’re supposed to be in the middle lane if you are not exiting the highway soon. The middle lane is the travel lane. Left lane passing lane. Right lane is specifically for entering/exiting the highway. At least on a 3 lane highway.
that is incorrect, on a three lane highway the left two lanes are overtaking lanes and the right lane is the travel lane, and you should.be in the fartherst right lane you can be in to allow other traffic to pass you
see for state laws https://www.mit.edu/~jfc/right.html
That isn’t true at all. You’ve made that up in your head and are causing traffic.
That causes safety, not traffic. The most dangerous maneuver you can perform on the road is a lane change and driving in the right lane forces lane changes upon you as people entering the highway are constantly doing it to you.
It’s also illegal in at least some places, but it is both common and typical for traffic laws to be out of sync with safety.