@Mike_O_Neill sure - I think most of it they know already, but it couldn’t hurt to collect it.
One other thing that I found out is that for single track compositions it seems to be required to copy the WORK tag into the TITLE tag in order to give Roon the trigger to find a match.
I have several albums where I have the work tags consistent and equal to the Rovi work name and they don’t match in single track cases where WORK tag and TITLE tag are different. (when “prefer file” is set)