The libraries in question for my specific case are ARCore.
When I export the project normally (without artifacts), it works fine and all of the AR libraries are linked up. When I use artifacts, the app works fine, but for whatever reason the AR portions don't work. I have a hunch it's just anything everything besides unity-classes.jar that's not being used.
I have copied the libs folder into the unity/android/ directory, as well as added the artifact. Any ideas what could be causing this?