Thanks Jay for the answer, but it's not quite what I was trying to get at. I have done some more research so here goes:
I am using Pro 3.0.2 and Enterprise 11.
The Data Reviewer based tools (DR itself and "Missing Features" and "Browse Features" of Manage Data Quality) use only the DR schema and that evaluate data quality step (from error inspector or the work flow manager step) only the error layers.
Can you have both the DR schema and error layers in the same database?
Is this possible with a Branch Versioned gdb? In enterprise?
In Pro, Data Reviewer requires the setting up a workspace on the database == a schema with tables for track errors e.g. Enable Data Reviewer. I assume the resulting schema tables are just like the tables set-up with Data Reviewer with ArcMap.
To use the Data Quality "Missing Features" and Browse Features tools you need the Data Reviewer license.
My understanding is that any errors generated by these 2 tools are written only to the DR schema tables.
What are called "Data Reviewer Checks" are equivalent to the "ready to use rules" that show up in the "Attribute Rules tab"?
Can Data Reviewer run standard attribute rules (written in Arcade) rather than the Reviewer checks? If so where are the errors written; DR schema, or the error layers?
From the Error Inspector running the evaluate data quality command the output for either a ready to use rule or a standard arcade validation rule are written to the error layers. They have different life cycle behavior.
Is there a way to import/export they error layers into the DR schema or visa versa?