This question flows from the recent question Would rocket engine exhaust create pockets of gas in space which could hinder further space exploration? it talks about daily Earth - Moon trips
If we establish shipping lanes in space for these daily deliveries,
Answers there indicate that gas just disperses, so no worries.
There also 150+ posts about debris that talk about stuff in Orbit around Earth and the risk that those items cause. Which is a seperate perspective, they are not occupying the same space, the are following the Earth on its journey through space.
On Earth shipping lanes reach between two locations on land, via sea (or air) and relative to Earth things are fairly static. I ship passes and a few hours later another ship is likely to travel through the same water and any debris the first ship left behind.
On an Earth Moon "shipping lane" there is nothing static. The Moon moves around the Earth, the Earth moves around the Sun, the Sun moves around the Galaxy, the Galaxy moves around the Universe.
Once a ship leaves Earth's atmosphere, is there any possibility of it occupying the same space (relative to the sun?) as another ship had previously?
A year later the Earth is kind of the same place, but is it really in the same place?