For lasers, that’s called “kerf offset”.
In general the beam diameter is very small - 0.05 to 0.3mm, depending on your laser type and lens setup.
So in most cases people don’t overly worry about it unless trying to do something like cut pieces from two different materials that then need to be inlaid into each other with a very tight fit.
To adjust for the beam width (kerf) in that case, you can use the “kerf offset” cut option:
Not quite - it still doesn’t in-set the area to fill by the kerf amount, which is what he wants. It would be relatively easy to have fills respect kerf. They don’t work that way at the moment, but I’d really just need to add it to the UI and make sure it’s handled properly in the cut builder.
I also have made a discovery on my settings that affected it. It was only ever on metal coated engravings that I was having issues. I doubled my speed, drastically lowered my power, but increased my lines per inch to 1000. Huge difference in what it removes.