Idea Edited 2023-03-17
In the Catalog View:
Database views are currently categorized as tables in the Type column. And annotation FCs are categorized as feature classes.

Those categorizations seem misleading. Could they be changed to better reflect those object types?
There might be other kinds of objects that aren't categorized specifically enough in mobile geodatabases too. I haven't tested them all. See mobile geodatabase datasets for a list.
Related: Filter Catalog by object type