Finally able to get into conan and took a look as well. I have a base with a mix of building styles. Argossean and Aquilonian pavilions and a Frontier tavern. I had to look close, but I did see the occasional floating or sunken thrall or placeable.

most obvious when in first person and when the object is visible as you are climbing stairs. otherwise i’d never have noticed. far less noticeable than spawning in half buried in the foundations though.

As it is most easily reproduced with mods installed, even if the mods have nothing to do with placed objects, i’m not sure how high the priority will be set.