I’ve only seen a difference in some reports. But, since I have not done the background research to write the wiki docs, it might also affect the Citation gramplets and quickviews.
It could be that it is related to a specific Bibliography call. Hopefully so. That would make it easier to search which reports plugins support CITE plugins and which need upgrading. (There are a lot of Reports. So searching by running samples would long, involved, and error-prone.)