What does this look like? The problem with the orbit lines. Sorry if it was captured in a previous page.
The problem is the orbit lines tend to disappear when they are completely vertical or horizontal. Anywhere in between and they look as you would expect. Picture this - you just jumped into a system and are flying away from the star and towards a planet. Let's assume the planet's orbit line is at a 45 degree angle out your cockpit window. Start rotating your ship slowly... nothing looks odd until the last few degrees just shy of 180 degrees (horizontal) and suddenly the line gets thinner and thinner until it become more of a dotted or dashed line. If you keep the rotation going the line becomes solid again when it is no longer exactly horizontal. Keep the ship rotating until the orbit line approaches straight up and down (vertical) and it starts to disappear again, and reappears as you keep rotating. A few degrees off of 180 or 90 and the lines are normal.
Additionally, pretend you're closing in on a planet with a moon or space station, and the moon's orbit line or station's orbit line appears as a ring around the planet. The ring looks thinner all the way around on AMD than it does on NVidia. As you get quite close to the planet, the ringed orbit line is more noticeable (thicker perhaps?) but the part of the ring at the top/bottom and left/right are too thin to make the line look continuous.
There are some photos in this thread but it is easy to miss this effect without paying really close attention because the lines are nearly invisible at that point.
I recently played on a 3060 laptop and can confirm the orbit lines were perfect, just as I remembered with my previous 2080 in my PC. Other than this (or if you are using VR), from my experience (I don't do first person combat, so I can't speak to that) the game looks and plays identically regardless of Nvidia or AMD.