Consider Using Microsofts USMT for user profile migrations
USMT is a fantastic tool but Microsoft has done a lousy job maintaining the xml files and not really bothered to include Windows 10 settings etc. :-/
For many years I have therefore used updated custom xml files from what I gather is the currently biggest expert on USMT and SCCM, Thomas Ehler at EhlerTech.com. You can pick up the updated XML files, for free that will handle all browser favorites from Chrome, Firefox and the new Edge, plus a lot of other Windows 10 settings like recent files etc. Even cached passwords in Firefox and Chrome will be migrated.
The MigUser.xml migrates the users profile under C:\Users\ (documents, background, theme settings, Explorer settings etc)
But MigUser.xml also searches the whole system for documents, so documents saved outside C:\Users\ will also be found. You can add file types to search for, to MigUser.xml.
In case you do not use SCCM or do not like the USMT command line tool, consider using USMTGUI or User Profile Central, also from Ehlertech, for easy handling of USMT.
Check out this USMTGUI review at Spiceworks